Google Map 自定义 infowindow

最近做的东西用到了infowindow,不过google提供的样式太难看了，于是想改变一下样式。看了一下好像infowindow的样式不太好改。

查了半天资料，看到一个infobox，感觉真的挺好用。提供了完整的api，样式的改变也容易。http://code.google.com/p/google-maps-utility-library-v3/wiki/Libraries里面还有其他的插件

都很好用。View example (infobox-basic.html) ，这是他给的一个demo，样式也很简单。但是通过他的api，可以很容易就作出更改了。遇到改infowindow的可以试一下。

infobox.js 插件

/**
 * @name InfoBox
 * @version 1.1.9 [October 2, 2011]
 * @author Gary Little (inspired by proof-of-concept code from Pamela Fox of Google)
 * @copyright Copyright 2010 Gary Little [gary at luxcentral.com]
 * @fileoverview InfoBox extends the Google Maps JavaScript API V3 <tt>OverlayView</tt> class.
 *  <p>
 *  An InfoBox behaves like a <tt>google.maps.InfoWindow</tt>, but it supports several
 *  additional properties for advanced styling. An InfoBox can also be used as a map label.
 *  <p>
 *  An InfoBox also fires the same events as a <tt>google.maps.InfoWindow</tt>.
 *  <p>
 *  Browsers tested:
 *  <p>
 *  Mac -- Safari (4.0.4), Firefox (3.6), Opera (10.10), Chrome (4.0.249.43), OmniWeb (5.10.1)
 *  <br>
 *  Win -- Safari, Firefox, Opera, Chrome (3.0.195.38), Internet Explorer (8.0.6001.18702)
 *  <br>
 *  iPod Touch/iPhone -- Safari (3.1.2)
 */

/*!
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*jslint browser:true */
/*global google */

/**
 * @name InfoBoxOptions
 * @class This class represents the optional parameter passed to the {@link InfoBox} constructor.
 * @property {string|Node} content The content of the InfoBox (plain text or an HTML DOM node).
 * @property {boolean} disableAutoPan Disable auto-pan on <tt>open</tt> (default is <tt>false</tt>).
 * @property {number} maxWidth The maximum width (in pixels) of the InfoBox. Set to 0 if no maximum.
 * @property {Size} pixelOffset The offset (in pixels) from the top left corner of the InfoBox
 *  (or the bottom left corner if the <code>alignBottom</code> property is <code>true</code>)
 *  to the map pixel corresponding to <tt>position</tt>.
 * @property {LatLng} position The geographic location at which to display the InfoBox.
 * @property {number} zIndex The CSS z-index style value for the InfoBox.
 *  Note: This value overrides a zIndex setting specified in the <tt>boxStyle</tt> property.
 * @property {string} boxClass The name of the CSS class defining the styles for the InfoBox container.
 *  The default name is <code>infoBox</code>.
 * @property {Object} [boxStyle] An object literal whose properties define specific CSS
 *  style values to be applied to the InfoBox. Style values defined here override those that may
 *  be defined in the <code>boxClass</code> style sheet. If this property is changed after the
 *  InfoBox has been created, all previously set styles (except those defined in the style sheet)
 *  are removed from the InfoBox before the new style values are applied.
 * @property {string} closeBoxMargin The CSS margin style value for the close box.
 *  The default is "2px" (a 2-pixel margin on all sides).
 * @property {string} closeBoxURL The URL of the image representing the close box.
 *  Note: The default is the URL for Google's standard close box.
 *  Set this property to "" if no close box is required.
 * @property {Size} infoBoxClearance Minimum offset (in pixels) from the InfoBox to the
 *  map edge after an auto-pan.
 * @property {boolean} isHidden Hide the InfoBox on <tt>open</tt> (default is <tt>false</tt>).
 * @property {boolean} alignBottom Align the bottom left corner of the InfoBox to the <code>position</code>
 *  location (default is <tt>false</tt> which means that the top left corner of the InfoBox is aligned).
 * @property {string} pane The pane where the InfoBox is to appear (default is "floatPane").
 *  Set the pane to "mapPane" if the InfoBox is being used as a map label.
 *  Valid pane names are the property names for the <tt>google.maps.MapPanes</tt> object.
 * @property {boolean} enableEventPropagation Propagate mousedown, click, dblclick,
 *  and contextmenu events in the InfoBox (default is <tt>false</tt> to mimic the behavior
 *  of a <tt>google.maps.InfoWindow</tt>). Set this property to <tt>true</tt> if the InfoBox
 *  is being used as a map label. iPhone note: This property setting has no effect; events are
 *  always propagated.
 */

/**
 * Creates an InfoBox with the options specified in {@link InfoBoxOptions}.
 *  Call <tt>InfoBox.open</tt> to add the box to the map.
 * @constructor
 * @param {InfoBoxOptions} [opt_opts]
 */
function InfoBox(opt_opts) {

  opt_opts = opt_opts || {};

  google.maps.OverlayView.apply(this, arguments);

  // Standard options (in common with google.maps.InfoWindow):
  //
  this.content_ = opt_opts.content || "";
  this.disableAutoPan_ = opt_opts.disableAutoPan || false;
  this.maxWidth_ = opt_opts.maxWidth || 0;
  this.pixelOffset_ = opt_opts.pixelOffset || new google.maps.Size(0, 0);
  this.position_ = opt_opts.position || new google.maps.LatLng(0, 0);
  this.zIndex_ = opt_opts.zIndex || null;

  // Additional options (unique to InfoBox):
  //
  this.boxClass_ = opt_opts.boxClass || "infoBox";
  this.boxStyle_ = opt_opts.boxStyle || {};
  this.closeBoxMargin_ = opt_opts.closeBoxMargin || "2px";
  this.closeBoxURL_ = opt_opts.closeBoxURL || "http://www.google.com/intl/en_us/mapfiles/close.gif";
  if (opt_opts.closeBoxURL === "") {
    this.closeBoxURL_ = "";
  }
  this.infoBoxClearance_ = opt_opts.infoBoxClearance || new google.maps.Size(1, 1);
  this.isHidden_ = opt_opts.isHidden || false;
  this.alignBottom_ = opt_opts.alignBottom || false;
  this.pane_ = opt_opts.pane || "floatPane";
  this.enableEventPropagation_ = opt_opts.enableEventPropagation || false;

  this.div_ = null;
  this.closeListener_ = null;
  this.eventListener1_ = null;
  this.eventListener2_ = null;
  this.eventListener3_ = null;
  this.moveListener_ = null;
  this.contextListener_ = null;
  this.fixedWidthSet_ = null;
}

/* InfoBox extends OverlayView in the Google Maps API v3.
 */
InfoBox.prototype = new google.maps.OverlayView();

/**
 * Creates the DIV representing the InfoBox.
 * @private
 */
InfoBox.prototype.createInfoBoxDiv_ = function () {

  var bw;
  var me = this;

  // This handler prevents an event in the InfoBox from being passed on to the map.
  //
  var cancelHandler = function (e) {
    e.cancelBubble = true;

    if (e.stopPropagation) {

      e.stopPropagation();
    }
  };

  // This handler ignores the current event in the InfoBox and conditionally prevents
  // the event from being passed on to the map. It is used for the contextmenu event.
  //
  var ignoreHandler = function (e) {

    e.returnValue = false;

    if (e.preventDefault) {

      e.preventDefault();
    }

    if (!me.enableEventPropagation_) {

      cancelHandler(e);
    }
  };

  if (!this.div_) {

    this.div_ = document.createElement("div");

    this.setBoxStyle_();

    if (typeof this.content_.nodeType === "undefined") {
      this.div_.innerHTML = this.getCloseBoxImg_() + this.content_;
    } else {
      this.div_.innerHTML = this.getCloseBoxImg_();
      this.div_.appendChild(this.content_);
    }

    // Add the InfoBox DIV to the DOM
    this.getPanes()[this.pane_].appendChild(this.div_);

    this.addClickHandler_();

    if (this.div_.style.width) {

      this.fixedWidthSet_ = true;

    } else {

      if (this.maxWidth_ !== 0 && this.div_.offsetWidth > this.maxWidth_) {

        this.div_.style.width = this.maxWidth_;
        this.div_.style.overflow = "auto";
        this.fixedWidthSet_ = true;

      } else { // The following code is needed to overcome problems with MSIE

        bw = this.getBoxWidths_();

        this.div_.style.width = (this.div_.offsetWidth - bw.left - bw.right) + "px";
        this.fixedWidthSet_ = false;
      }
    }

    this.panBox_(this.disableAutoPan_);

    if (!this.enableEventPropagation_) {

      // Cancel event propagation.
      //
      this.eventListener1_ = google.maps.event.addDomListener(this.div_, "mousedown", cancelHandler);
      this.eventListener2_ = google.maps.event.addDomListener(this.div_, "click", cancelHandler);
      this.eventListener3_ = google.maps.event.addDomListener(this.div_, "dblclick", cancelHandler);
      this.eventListener4_ = google.maps.event.addDomListener(this.div_, "mouseover", function (e) {
        this.style.cursor = "default";
      });
    }

    this.contextListener_ = google.maps.event.addDomListener(this.div_, "contextmenu", ignoreHandler);

    /**
     * This event is fired when the DIV containing the InfoBox's content is attached to the DOM.
     * @name InfoBox#domready
     * @event
     */
    google.maps.event.trigger(this, "domready");
  }
};

/**
 * Returns the HTML <IMG> tag for the close box.
 * @private
 */
InfoBox.prototype.getCloseBoxImg_ = function () {

  var img = "";

  if (this.closeBoxURL_ !== "") {

    img  = "<img";
    img += " src='" + this.closeBoxURL_ + "'";
    img += " align=right"; // Do this because Opera chokes on style='float: right;'
    img += " style='";
    img += " position: relative;"; // Required by MSIE
    img += " cursor: pointer;";
    img += " margin: " + this.closeBoxMargin_ + ";";
    img += "'>";
  }

  return img;
};

/**
 * Adds the click handler to the InfoBox close box.
 * @private
 */
InfoBox.prototype.addClickHandler_ = function () {

  var closeBox;

  if (this.closeBoxURL_ !== "") {

    closeBox = this.div_.firstChild;
    this.closeListener_ = google.maps.event.addDomListener(closeBox, 'click', this.getCloseClickHandler_());

  } else {

    this.closeListener_ = null;
  }
};

/**
 * Returns the function to call when the user clicks the close box of an InfoBox.
 * @private
 */
InfoBox.prototype.getCloseClickHandler_ = function () {

  var me = this;

  return function (e) {

    // 1.0.3 fix: Always prevent propagation of a close box click to the map:
    e.cancelBubble = true;

    if (e.stopPropagation) {

      e.stopPropagation();
    }

    me.close();

    /**
     * This event is fired when the InfoBox's close box is clicked.
     * @name InfoBox#closeclick
     * @event
     */
    google.maps.event.trigger(me, "closeclick");
  };
};

/**
 * Pans the map so that the InfoBox appears entirely within the map's visible area.
 * @private
 */
InfoBox.prototype.panBox_ = function (disablePan) {

  var map;
  var bounds;
  var xOffset = 0, yOffset = 0;

  if (!disablePan) {

    map = this.getMap();

    if (map instanceof google.maps.Map) { // Only pan if attached to map, not panorama

      if (!map.getBounds().contains(this.position_)) {
      // Marker not in visible area of map, so set center
      // of map to the marker position first.
        map.setCenter(this.position_);
      }

      bounds = map.getBounds();

      var mapDiv = map.getDiv();
      var mapWidth = mapDiv.offsetWidth;
      var mapHeight = mapDiv.offsetHeight;
      var iwOffsetX = this.pixelOffset_.width;
      var iwOffsetY = this.pixelOffset_.height;
      var iwWidth = this.div_.offsetWidth;
      var iwHeight = this.div_.offsetHeight;
      var padX = this.infoBoxClearance_.width;
      var padY = this.infoBoxClearance_.height;
      var pixPosition = this.getProjection().fromLatLngToContainerPixel(this.position_);

      if (pixPosition.x < (-iwOffsetX + padX)) {
        xOffset = pixPosition.x + iwOffsetX - padX;
      } else if ((pixPosition.x + iwWidth + iwOffsetX + padX) > mapWidth) {
        xOffset = pixPosition.x + iwWidth + iwOffsetX + padX - mapWidth;
      }
      if (this.alignBottom_) {
        if (pixPosition.y < (-iwOffsetY + padY + iwHeight)) {
          yOffset = pixPosition.y + iwOffsetY - padY - iwHeight;
        } else if ((pixPosition.y + iwOffsetY + padY) > mapHeight) {
          yOffset = pixPosition.y + iwOffsetY + padY - mapHeight;
        }
      } else {
        if (pixPosition.y < (-iwOffsetY + padY)) {
          yOffset = pixPosition.y + iwOffsetY - padY;
        } else if ((pixPosition.y + iwHeight + iwOffsetY + padY) > mapHeight) {
          yOffset = pixPosition.y + iwHeight + iwOffsetY + padY - mapHeight;
        }
      }

      if (!(xOffset === 0 && yOffset === 0)) {

        // Move the map to the shifted center.
        //
        var c = map.getCenter();
        map.panBy(xOffset, yOffset);
      }
    }
  }
};

/**
 * Sets the style of the InfoBox by setting the style sheet and applying
 * other specific styles requested.
 * @private
 */
InfoBox.prototype.setBoxStyle_ = function () {

  var i, boxStyle;

  if (this.div_) {

    // Apply style values from the style sheet defined in the boxClass parameter:
    this.div_.className = this.boxClass_;

    // Clear existing inline style values:
    this.div_.style.cssText = "";

    // Apply style values defined in the boxStyle parameter:
    boxStyle = this.boxStyle_;
    for (i in boxStyle) {

      if (boxStyle.hasOwnProperty(i)) {

        this.div_.style[i] = boxStyle[i];
      }
    }

    // Fix up opacity style for benefit of MSIE:
    //
    if (typeof this.div_.style.opacity !== "undefined" && this.div_.style.opacity !== "") {

      this.div_.style.filter = "alpha(opacity=" + (this.div_.style.opacity * 100) + ")";
    }

    // Apply required styles:
    //
    this.div_.style.position = "absolute";
    this.div_.style.visibility = 'hidden';
    if (this.zIndex_ !== null) {

      this.div_.style.zIndex = this.zIndex_;
    }
  }
};

/**
 * Get the widths of the borders of the InfoBox.
 * @private
 * @return {Object} widths object (top, bottom left, right)
 */
InfoBox.prototype.getBoxWidths_ = function () {

  var computedStyle;
  var bw = {top: 0, bottom: 0, left: 0, right: 0};
  var box = this.div_;

  if (document.defaultView && document.defaultView.getComputedStyle) {

    computedStyle = box.ownerDocument.defaultView.getComputedStyle(box, "");

    if (computedStyle) {

      // The computed styles are always in pixel units (good!)
      bw.top = parseInt(computedStyle.borderTopWidth, 10) || 0;
      bw.bottom = parseInt(computedStyle.borderBottomWidth, 10) || 0;
      bw.left = parseInt(computedStyle.borderLeftWidth, 10) || 0;
      bw.right = parseInt(computedStyle.borderRightWidth, 10) || 0;
    }

  } else if (document.documentElement.currentStyle) { // MSIE

    if (box.currentStyle) {

      // The current styles may not be in pixel units, but assume they are (bad!)
      bw.top = parseInt(box.currentStyle.borderTopWidth, 10) || 0;
      bw.bottom = parseInt(box.currentStyle.borderBottomWidth, 10) || 0;
      bw.left = parseInt(box.currentStyle.borderLeftWidth, 10) || 0;
      bw.right = parseInt(box.currentStyle.borderRightWidth, 10) || 0;
    }
  }

  return bw;
};

/**
 * Invoked when <tt>close</tt> is called. Do not call it directly.
 */
InfoBox.prototype.onRemove = function () {

  if (this.div_) {

    this.div_.parentNode.removeChild(this.div_);
    this.div_ = null;
  }
};

/**
 * Draws the InfoBox based on the current map projection and zoom level.
 */
InfoBox.prototype.draw = function () {

  this.createInfoBoxDiv_();

  var pixPosition = this.getProjection().fromLatLngToDivPixel(this.position_);

  this.div_.style.left = (pixPosition.x + this.pixelOffset_.width) + "px";
  
  if (this.alignBottom_) {
    this.div_.style.bottom = -(pixPosition.y + this.pixelOffset_.height) + "px";
  } else {
    this.div_.style.top = (pixPosition.y + this.pixelOffset_.height) + "px";
  }

  if (this.isHidden_) {

    this.div_.style.visibility = 'hidden';

  } else {

    this.div_.style.visibility = "visible";
  }
};

/**
 * Sets the options for the InfoBox. Note that changes to the <tt>maxWidth</tt>,
 *  <tt>closeBoxMargin</tt>, <tt>closeBoxURL</tt>, and <tt>enableEventPropagation</tt>
 *  properties have no affect until the current InfoBox is <tt>close</tt>d and a new one
 *  is <tt>open</tt>ed.
 * @param {InfoBoxOptions} opt_opts
 */
InfoBox.prototype.setOptions = function (opt_opts) {
  if (typeof opt_opts.boxClass !== "undefined") { // Must be first

    this.boxClass_ = opt_opts.boxClass;
    this.setBoxStyle_();
  }
  if (typeof opt_opts.boxStyle !== "undefined") { // Must be second

    this.boxStyle_ = opt_opts.boxStyle;
    this.setBoxStyle_();
  }
  if (typeof opt_opts.content !== "undefined") {

    this.setContent(opt_opts.content);
  }
  if (typeof opt_opts.disableAutoPan !== "undefined") {

    this.disableAutoPan_ = opt_opts.disableAutoPan;
  }
  if (typeof opt_opts.maxWidth !== "undefined") {

    this.maxWidth_ = opt_opts.maxWidth;
  }
  if (typeof opt_opts.pixelOffset !== "undefined") {

    this.pixelOffset_ = opt_opts.pixelOffset;
  }
  if (typeof opt_opts.alignBottom !== "undefined") {

    this.alignBottom_ = opt_opts.alignBottom;
  }
  if (typeof opt_opts.position !== "undefined") {

    this.setPosition(opt_opts.position);
  }
  if (typeof opt_opts.zIndex !== "undefined") {

    this.setZIndex(opt_opts.zIndex);
  }
  if (typeof opt_opts.closeBoxMargin !== "undefined") {

    this.closeBoxMargin_ = opt_opts.closeBoxMargin;
  }
  if (typeof opt_opts.closeBoxURL !== "undefined") {

    this.closeBoxURL_ = opt_opts.closeBoxURL;
  }
  if (typeof opt_opts.infoBoxClearance !== "undefined") {

    this.infoBoxClearance_ = opt_opts.infoBoxClearance;
  }
  if (typeof opt_opts.isHidden !== "undefined") {

    this.isHidden_ = opt_opts.isHidden;
  }
  if (typeof opt_opts.enableEventPropagation !== "undefined") {

    this.enableEventPropagation_ = opt_opts.enableEventPropagation;
  }

  if (this.div_) {

    this.draw();
  }
};

/**
 * Sets the content of the InfoBox.
 *  The content can be plain text or an HTML DOM node.
 * @param {string|Node} content
 */
InfoBox.prototype.setContent = function (content) {
  this.content_ = content;

  if (this.div_) {

    if (this.closeListener_) {

      google.maps.event.removeListener(this.closeListener_);
      this.closeListener_ = null;
    }

    // Odd code required to make things work with MSIE.
    //
    if (!this.fixedWidthSet_) {

      this.div_.style.width = "";
    }

    if (typeof content.nodeType === "undefined") {
      this.div_.innerHTML = this.getCloseBoxImg_() + content;
    } else {
      this.div_.innerHTML = this.getCloseBoxImg_();
      this.div_.appendChild(content);
    }

    // Perverse code required to make things work with MSIE.
    // (Ensures the close box does, in fact, float to the right.)
    //
    if (!this.fixedWidthSet_) {
      this.div_.style.width = this.div_.offsetWidth + "px";
      if (typeof content.nodeType === "undefined") {
        this.div_.innerHTML = this.getCloseBoxImg_() + content;
      } else {
        this.div_.innerHTML = this.getCloseBoxImg_();
        this.div_.appendChild(content);
      }
    }

    this.addClickHandler_();
  }

  /**
   * This event is fired when the content of the InfoBox changes.
   * @name InfoBox#content_changed
   * @event
   */
  google.maps.event.trigger(this, "content_changed");
};

/**
 * Sets the geographic location of the InfoBox.
 * @param {LatLng} latlng
 */
InfoBox.prototype.setPosition = function (latlng) {

  this.position_ = latlng;

  if (this.div_) {

    this.draw();
  }

  /**
   * This event is fired when the position of the InfoBox changes.
   * @name InfoBox#position_changed
   * @event
   */
  google.maps.event.trigger(this, "position_changed");
};

/**
 * Sets the zIndex style for the InfoBox.
 * @param {number} index
 */
InfoBox.prototype.setZIndex = function (index) {

  this.zIndex_ = index;

  if (this.div_) {

    this.div_.style.zIndex = index;
  }

  /**
   * This event is fired when the zIndex of the InfoBox changes.
   * @name InfoBox#zindex_changed
   * @event
   */
  google.maps.event.trigger(this, "zindex_changed");
};

/**
 * Returns the content of the InfoBox.
 * @returns {string}
 */
InfoBox.prototype.getContent = function () {

  return this.content_;
};

/**
 * Returns the geographic location of the InfoBox.
 * @returns {LatLng}
 */
InfoBox.prototype.getPosition = function () {

  return this.position_;
};

/**
 * Returns the zIndex for the InfoBox.
 * @returns {number}
 */
InfoBox.prototype.getZIndex = function () {

  return this.zIndex_;
};

/**
 * Shows the InfoBox.
 */
InfoBox.prototype.show = function () {

  this.isHidden_ = false;
  if (this.div_) {
    this.div_.style.visibility = "visible";
  }
};

/**
 * Hides the InfoBox.
 */
InfoBox.prototype.hide = function () {

  this.isHidden_ = true;
  if (this.div_) {
    this.div_.style.visibility = "hidden";
  }
};

/**
 * Adds the InfoBox to the specified map or Street View panorama. If <tt>anchor</tt>
 *  (usually a <tt>google.maps.Marker</tt>) is specified, the position
 *  of the InfoBox is set to the position of the <tt>anchor</tt>. If the
 *  anchor is dragged to a new location, the InfoBox moves as well.
 * @param {Map|StreetViewPanorama} map
 * @param {MVCObject} [anchor]
 */
InfoBox.prototype.open = function (map, anchor) {

  var me = this;

  if (anchor) {

    this.position_ = anchor.getPosition();
    this.moveListener_ = google.maps.event.addListener(anchor, "position_changed", function () {
      me.setPosition(this.getPosition());
    });
  }

  this.setMap(map);

  if (this.div_) {

    this.panBox_();
  }
};

/**
 * Removes the InfoBox from the map.
 */
InfoBox.prototype.close = function () {

  if (this.closeListener_) {

    google.maps.event.removeListener(this.closeListener_);
    this.closeListener_ = null;
  }

  if (this.eventListener1_) {

    google.maps.event.removeListener(this.eventListener1_);
    google.maps.event.removeListener(this.eventListener2_);
    google.maps.event.removeListener(this.eventListener3_);
    google.maps.event.removeListener(this.eventListener4_);
    this.eventListener1_ = null;
    this.eventListener2_ = null;
    this.eventListener3_ = null;
    this.eventListener4_ = null;
  }

  if (this.moveListener_) {

    google.maps.event.removeListener(this.moveListener_);
    this.moveListener_ = null;
  }

  if (this.contextListener_) {

    google.maps.event.removeListener(this.contextListener_);
    this.contextListener_ = null;
  }

  this.setMap(null);
};

相关的例子

<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?v=3&amp;sensor=false"></script>
<script type="text/javascript" src="../src/infobox.js"></script>
<script type="text/javascript">
    function initialize() {
        var secheltLoc = new google.maps.LatLng(49.47216, -123.76307);

        var myMapOptions = {
             zoom: 15
            ,center: secheltLoc
            ,mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var theMap = new google.maps.Map(document.getElementById("map_canvas"), myMapOptions);


        var marker = new google.maps.Marker({
            map: theMap,
            draggable: true,
            position: new google.maps.LatLng(49.47216, -123.76307),
            visible: true
        });

        var boxText = document.createElement("div");
        boxText.style.cssText = "border: 1px solid black; margin-top: 8px; background: yellow; padding: 5px;";
        boxText.innerHTML = "City Hall, Sechelt<br>British Columbia<br>Canada";

        var myOptions = {
             content: boxText
            ,disableAutoPan: false
            ,maxWidth: 0
            ,pixelOffset: new google.maps.Size(-140, 0)
            ,zIndex: null
            ,boxStyle: { 
              background: "url('tipbox.gif') no-repeat"
              ,opacity: 0.75
              , "280px"
             }
            ,closeBoxMargin: "10px 2px 2px 2px"
            ,closeBoxURL: "http://www.google.com/intl/en_us/mapfiles/close.gif"
            ,infoBoxClearance: new google.maps.Size(1, 1)
            ,isHidden: false
            ,pane: "floatPane"
            ,enableEventPropagation: false
        };

        google.maps.event.addListener(marker, "click", function (e) {
            ib.open(theMap, this);
        });

        var ib = new InfoBox(myOptions);
        ib.open(theMap, marker);
    }
</script>

<title>Creating and Using an InfoBox</title>
</head>
<body onload="initialize()">
    <div id="map_canvas" style=" 100%; height: 400px"></div>
    <p>
    This example shows the "traditional" use of an InfoBox as a replacement for an InfoWindow.
</body>

</html>

同时我是多点连接还需要自动缩放

当时网上找的例子的地址：http://www.kankanews.com/ICkengine/archives/131210.shtml

不过经过上面的例子只能固定到一定的大小，而且使用infobox.js 插件他的infobox不支持min-Width，所以自己改写了下，下面是整套的源码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Map.aspx.cs" Inherits="Index_Map" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Locus </title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <script type="text/javascript" src="mapfiles/mapapi.js"></script>
    <script src="mapfiles/infobox/infobox.js" type="text/javascript"></script>
    <script type="text/javascript" src="javascript/Cookie.js"></script>
    <script type="text/javascript">

        var str=getCookie("GoogelMap"); //这是一字符串
        delCookie("GoogelMap");
        var strs= new Array(); //定义一数组
        var latstrs= new Array(); //定义一数组
        var locations = new Array(); //定义一数组
     
        var fly="icon/fly.png";  
        var point="icon/point.png"; 
        var land="icon/land.png";
   
        if(str!=null)
        {
            strs=str.split("|"); //字符分割 
            for (i=0;i<strs.length ;i++ )    
            {            
                latstrs=strs[i].split("-"); //字符分割  
                for(j=0;j<latstrs.length;j++)
                {   
                    var GooglePoint = new Array();
                    GooglePoint["lat"]=latstrs[1].replace("<a>","").replace("</a>","");
                    GooglePoint["lon"]=latstrs[2].replace("<a>","").replace("</a>","");
                    GooglePoint["title"]=latstrs[0].replace("<a>","").replace("</a>","");
                    GooglePoint["html"]=latstrs[0].replace("<a>","").replace("</a>","");  
                         
                    if(i==0)
                    {             
                        GooglePoint["icon"]=fly;                        
                        locations.push(GooglePoint);
                        break;
                    }
                    else if(i==strs.length-1)
                    { 
                       GooglePoint["icon"]=land;              
                       locations.push(GooglePoint);
                       break;
                    }
                    else
                    { 
                       GooglePoint["icon"]=point;                       
                       locations.push(GooglePoint);
                       break;
                    }           
                }              
            }   
        }
        else
        {          
           <%=getlocations()%>;          
        }
        
        //地图
        var map;
        var infoWindow
        var marker;
        var poly;

        var defaultZoom = 9;

        /* 加载地图 */
        function initialize() {
            var latlng = new google.maps.LatLng(39.90403, 116.407526);
            var myOptions = {
                zoom: defaultZoom,    //缩放级别
                center: latlng,        //坐标
                mapTypeId: google.maps.MapTypeId.ROADMAP    //类型:默认的普通二维图块
            };
            map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

            //设置地图缩放
            var i=locations.length;
            var bounds = new google.maps.LatLngBounds();
            while(i--){
                bounds.extend(new   google.maps.LatLng(locations[i]["lat"],locations[i]["lon"]));
            }
            map.fitBounds(bounds);


            // 线条设置
            var polyOptions = {
                strokeColor: '#2e2df9',    // 颜色
                strokeOpacity: 1.0,    // 透明度
                strokeWeight: 2    // 宽度
            }
            poly = new google.maps.Polyline(polyOptions);
            poly.setMap(map);    // 装载


            /* 循环标出所有坐标 */
            for (var i = 0; i < locations.length; i++) {
                //var loc = locations[i].split(',');
                var loc = locations[i];

                var path = poly.getPath();    //获取线条的坐标
                path.push(new google.maps.LatLng(loc["lat"], loc["lon"]));    //为线条添加标记坐标
                //生成标记图标
                marker = new google.maps.Marker({
                    position: new google.maps.LatLng(loc["lat"], loc["lon"]),
                    map: map,
                    icon: loc["icon"],
                    title:loc["title"]
                                });

                AddInfoBox(marker, map);
            }
        }

        function AddInfoBox(marker, map) {
            var boxText = document.createElement("div");
            boxText.style.cssText = "border: 1px solid #999894; margin-top: 9px; background: #f5f5f5; padding:3px 5px;font-size:12px;font-family:'宋体';height:15px;line-height:15px;text-align:center";
            //设置宽度，取出字符长度*6
            var ssize = GetLength(marker.title)*6;
            boxText.style.width = ssize + "px";
            boxText.innerHTML = marker.title;

            var myOptions = { 
                content: boxText, 
                maxWidth: 0, 
                disableAutoPan: false,
                 pixelOffset: new google.maps.Size(15, -40),
                  boxClass:"shop_location" ,
                  closeBoxURL: "" ,
                  infoBoxClearance: new google.maps.Size(1, 1) ,
                  isHidden: false ,
                  pane: "floatPane" ,
                  enableEventPropagation: false ,
                  maxWidth: ssize + 12
                  };
                   
            google.maps.event.addListener(marker, "click", function (e) {
//                var ib = new InfoBox(myOptions);
                ib.open(map, this);
            });
            var ib = new InfoBox(myOptions);
            ib.open(map, marker);
        }

        function GetLength (str) {
            ///<summary>获得字符串实际长度，中文2，英文1</summary>
            ///<param name="str">要获得长度的字符串</param>
            var realLength = 0, len = str.length, charCode = -1;
            for (var i = 0; i < len; i++) {
                charCode = str.charCodeAt(i);
                if (charCode >= 0 && charCode <= 128) realLength += 1;
                else realLength += 2;
            }
            return realLength;
        };
    </script>
</head>
<body onload="initialize()">
    <form id="form1" runat="server">
    <div>
        <div id="map_canvas" style=" 724px; height: 479px;">
        </div>
    </div>
    </form>
</body>
</html>

infobox.js 也需要改写

/**
* @name InfoBox
* @version 1.1.9 [October 2, 2011]
* @author Gary Little (inspired by proof-of-concept code from Pamela Fox of Google)
* @copyright Copyright 2010 Gary Little [gary at luxcentral.com]
* @fileoverview InfoBox extends the Google Maps JavaScript API V3 <tt>OverlayView</tt> class.
*  <p>
*  An InfoBox behaves like a <tt>google.maps.InfoWindow</tt>, but it supports several
*  additional properties for advanced styling. An InfoBox can also be used as a map label.
*  <p>
*  An InfoBox also fires the same events as a <tt>google.maps.InfoWindow</tt>.
*  <p>
*  Browsers tested:
*  <p>
*  Mac -- Safari (4.0.4), Firefox (3.6), Opera (10.10), Chrome (4.0.249.43), OmniWeb (5.10.1)
*  <br>
*  Win -- Safari, Firefox, Opera, Chrome (3.0.195.38), Internet Explorer (8.0.6001.18702)
*  <br>
*  iPod Touch/iPhone -- Safari (3.1.2)
*/

/*!
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*       http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/*jslint browser:true */
/*global google */

/**
* @name InfoBoxOptions
* @class This class represents the optional parameter passed to the {@link InfoBox} constructor.
* @property {string|Node} content The content of the InfoBox (plain text or an HTML DOM node).
* @property {boolean} disableAutoPan Disable auto-pan on <tt>open</tt> (default is <tt>false</tt>).
* @property {number} maxWidth The maximum width (in pixels) of the InfoBox. Set to 0 if no maximum.
* @property {Size} pixelOffset The offset (in pixels) from the top left corner of the InfoBox
*  (or the bottom left corner if the <code>alignBottom</code> property is <code>true</code>)
*  to the map pixel corresponding to <tt>position</tt>.
* @property {LatLng} position The geographic location at which to display the InfoBox.
* @property {number} zIndex The CSS z-index style value for the InfoBox.
*  Note: This value overrides a zIndex setting specified in the <tt>boxStyle</tt> property.
* @property {string} boxClass The name of the CSS class defining the styles for the InfoBox container.
*  The default name is <code>infoBox</code>.
* @property {Object} [boxStyle] An object literal whose properties define specific CSS
*  style values to be applied to the InfoBox. Style values defined here override those that may
*  be defined in the <code>boxClass</code> style sheet. If this property is changed after the
*  InfoBox has been created, all previously set styles (except those defined in the style sheet)
*  are removed from the InfoBox before the new style values are applied.
* @property {string} closeBoxMargin The CSS margin style value for the close box.
*  The default is "2px" (a 2-pixel margin on all sides).
* @property {string} closeBoxURL The URL of the image representing the close box.
*  Note: The default is the URL for Google's standard close box.
*  Set this property to "" if no close box is required.
* @property {Size} infoBoxClearance Minimum offset (in pixels) from the InfoBox to the
*  map edge after an auto-pan.
* @property {boolean} isHidden Hide the InfoBox on <tt>open</tt> (default is <tt>false</tt>).
* @property {boolean} alignBottom Align the bottom left corner of the InfoBox to the <code>position</code>
*  location (default is <tt>false</tt> which means that the top left corner of the InfoBox is aligned).
* @property {string} pane The pane where the InfoBox is to appear (default is "floatPane").
*  Set the pane to "mapPane" if the InfoBox is being used as a map label.
*  Valid pane names are the property names for the <tt>google.maps.MapPanes</tt> object.
* @property {boolean} enableEventPropagation Propagate mousedown, click, dblclick,
*  and contextmenu events in the InfoBox (default is <tt>false</tt> to mimic the behavior
*  of a <tt>google.maps.InfoWindow</tt>). Set this property to <tt>true</tt> if the InfoBox
*  is being used as a map label. iPhone note: This property setting has no effect; events are
*  always propagated.
*/

/**
* Creates an InfoBox with the options specified in {@link InfoBoxOptions}.
*  Call <tt>InfoBox.open</tt> to add the box to the map.
* @constructor
* @param {InfoBoxOptions} [opt_opts]
*/
function InfoBox(opt_opts) {

    opt_opts = opt_opts || {};

    google.maps.OverlayView.apply(this, arguments);

    // Standard options (in common with google.maps.InfoWindow):
    //
    this.content_ = opt_opts.content || "";
    this.disableAutoPan_ = opt_opts.disableAutoPan || false;
    this.maxWidth_ = opt_opts.maxWidth || 0;
    this.pixelOffset_ = opt_opts.pixelOffset || new google.maps.Size(0, 0);
    this.position_ = opt_opts.position || new google.maps.LatLng(0, 0);
    this.zIndex_ = opt_opts.zIndex || null;

    // Additional options (unique to InfoBox):
    //
    this.boxClass_ = opt_opts.boxClass || "infoBox";
    this.boxStyle_ = opt_opts.boxStyle || {};
    //2014/10/20 luoc 去掉关闭
    this.closeBoxMargin_ = opt_opts.closeBoxMargin || "2px";
    //this.closeBoxURL_ = opt_opts.closeBoxURL || "http://www.google.com/intl/en_us/mapfiles/close.gif";
    this.closeBoxURL_ = ""
    if (opt_opts.closeBoxURL === "") {
        this.closeBoxURL_ = "";
    }
    this.infoBoxClearance_ = opt_opts.infoBoxClearance || new google.maps.Size(1, 1);
    this.isHidden_ = opt_opts.isHidden || false;
    this.alignBottom_ = opt_opts.alignBottom || false;
    this.pane_ = opt_opts.pane || "floatPane";
    this.enableEventPropagation_ = opt_opts.enableEventPropagation || false;

    this.div_ = null;
    this.closeListener_ = null;
    this.eventListener1_ = null;
    this.eventListener2_ = null;
    this.eventListener3_ = null;
    this.moveListener_ = null;
    this.contextListener_ = null;
    this.fixedWidthSet_ = null;
}

/* InfoBox extends OverlayView in the Google Maps API v3.
*/
InfoBox.prototype = new google.maps.OverlayView();

/**
* Creates the DIV representing the InfoBox.
* @private
*/
InfoBox.prototype.createInfoBoxDiv_ = function () {

    var bw;
    var me = this;

    // This handler prevents an event in the InfoBox from being passed on to the map.
    //
    var cancelHandler = function (e) {
        e.cancelBubble = true;

        if (e.stopPropagation) {

            e.stopPropagation();
        }
    };

    // This handler ignores the current event in the InfoBox and conditionally prevents
    // the event from being passed on to the map. It is used for the contextmenu event.
    //
    var ignoreHandler = function (e) {

        e.returnValue = false;

        if (e.preventDefault) {

            e.preventDefault();
        }

        if (!me.enableEventPropagation_) {

            cancelHandler(e);
        }
    };

    if (!this.div_) {

        this.div_ = document.createElement("div");

        this.setBoxStyle_();

        if (typeof this.content_.nodeType === "undefined") {
            //2014/10/20 luoc 去掉关闭
            //this.div_.innerHTML = this.getCloseBoxImg_() + this.content_;
            this.div_.innerHTML = this.content_;
        } else {
            this.div_.innerHTML = this.getCloseBoxImg_();
            this.div_.appendChild(this.content_);
        }

        // Add the InfoBox DIV to the DOM
        this.getPanes()[this.pane_].appendChild(this.div_);

        this.addClickHandler_();

        if (this.div_.style.width) {

            this.fixedWidthSet_ = true;

        } else {

            if (this.maxWidth_ !== 0 && this.div_.offsetWidth > this.maxWidth_) {

                this.div_.style.width = this.maxWidth_;
                this.div_.style.overflow = "hidden";
                this.fixedWidthSet_ = true;

            }
            else {
                this.div_.style.width = this.maxWidth_ + "px";
                this.fixedWidthSet_ = false;
            }
            //2014/10/21 luoc 原来不用根据传过来的maxWidth 设置宽度
//            else { // The following code is needed to overcome problems with MSIE

//                bw = this.getBoxWidths_();

//                this.div_.style.width = (this.div_.offsetWidth - bw.left - bw.right) + "px";
//                this.fixedWidthSet_ = false;
//            }
        }

        this.panBox_(this.disableAutoPan_);

        if (!this.enableEventPropagation_) {

            // Cancel event propagation.
            //
            this.eventListener1_ = google.maps.event.addDomListener(this.div_, "mousedown", cancelHandler);
            this.eventListener2_ = google.maps.event.addDomListener(this.div_, "click", cancelHandler);
            this.eventListener3_ = google.maps.event.addDomListener(this.div_, "dblclick", cancelHandler);
            this.eventListener4_ = google.maps.event.addDomListener(this.div_, "mouseover", function (e) {
                this.style.cursor = "default";
            });
        }

        this.contextListener_ = google.maps.event.addDomListener(this.div_, "contextmenu", ignoreHandler);

        /**
        * This event is fired when the DIV containing the InfoBox's content is attached to the DOM.
        * @name InfoBox#domready
        * @event
        */
        google.maps.event.trigger(this, "domready");
    }
};

/**
* Returns the HTML <IMG> tag for the close box.
* @private
*/
InfoBox.prototype.getCloseBoxImg_ = function () {

    var img = "";

    if (this.closeBoxURL_ !== "") {

        img = "<img";
        img += " src='" + this.closeBoxURL_ + "'";
        img += " align=right"; // Do this because Opera chokes on style='float: right;'
        img += " style='";
        img += " position: relative;"; // Required by MSIE
        img += " cursor: pointer;";
        img += " margin: " + this.closeBoxMargin_ + ";";
        img += "'>";
    }

    return img;
};

/**
* Adds the click handler to the InfoBox close box.
* @private
*/
InfoBox.prototype.addClickHandler_ = function () {

    var closeBox;

    if (this.closeBoxURL_ !== "") {

        closeBox = this.div_.firstChild;
        this.closeListener_ = google.maps.event.addDomListener(closeBox, 'click', this.getCloseClickHandler_());

    } else {

        this.closeListener_ = null;
    }
};

/**
* Returns the function to call when the user clicks the close box of an InfoBox.
* @private
*/
InfoBox.prototype.getCloseClickHandler_ = function () {

    var me = this;

    return function (e) {

        // 1.0.3 fix: Always prevent propagation of a close box click to the map:
        e.cancelBubble = true;

        if (e.stopPropagation) {

            e.stopPropagation();
        }

        me.close();

        /**
        * This event is fired when the InfoBox's close box is clicked.
        * @name InfoBox#closeclick
        * @event
        */
        google.maps.event.trigger(me, "closeclick");
    };
};

/**
* Pans the map so that the InfoBox appears entirely within the map's visible area.
* @private
*/
InfoBox.prototype.panBox_ = function (disablePan) {

    var map;
    var bounds;
    var xOffset = 0, yOffset = 0;

    if (!disablePan) {

        map = this.getMap();

        if (map instanceof google.maps.Map) { // Only pan if attached to map, not panorama

            if (!map.getBounds().contains(this.position_)) {
                // Marker not in visible area of map, so set center
                // of map to the marker position first.
                map.setCenter(this.position_);
            }

            bounds = map.getBounds();

            var mapDiv = map.getDiv();
            var mapWidth = mapDiv.offsetWidth;
            var mapHeight = mapDiv.offsetHeight;
            var iwOffsetX = this.pixelOffset_.width;
            var iwOffsetY = this.pixelOffset_.height;
            var iwWidth = this.div_.offsetWidth;
            var iwHeight = this.div_.offsetHeight;
            var padX = this.infoBoxClearance_.width;
            var padY = this.infoBoxClearance_.height;
            var pixPosition = this.getProjection().fromLatLngToContainerPixel(this.position_);

            if (pixPosition.x < (-iwOffsetX + padX)) {
                xOffset = pixPosition.x + iwOffsetX - padX;
            } else if ((pixPosition.x + iwWidth + iwOffsetX + padX) > mapWidth) {
                xOffset = pixPosition.x + iwWidth + iwOffsetX + padX - mapWidth;
            }
            if (this.alignBottom_) {
                if (pixPosition.y < (-iwOffsetY + padY + iwHeight)) {
                    yOffset = pixPosition.y + iwOffsetY - padY - iwHeight;
                } else if ((pixPosition.y + iwOffsetY + padY) > mapHeight) {
                    yOffset = pixPosition.y + iwOffsetY + padY - mapHeight;
                }
            } else {
                if (pixPosition.y < (-iwOffsetY + padY)) {
                    yOffset = pixPosition.y + iwOffsetY - padY;
                } else if ((pixPosition.y + iwHeight + iwOffsetY + padY) > mapHeight) {
                    yOffset = pixPosition.y + iwHeight + iwOffsetY + padY - mapHeight;
                }
            }

            if (!(xOffset === 0 && yOffset === 0)) {

                // Move the map to the shifted center.
                //
                var c = map.getCenter();
                map.panBy(xOffset, yOffset);
            }
        }
    }
};

/**
* Sets the style of the InfoBox by setting the style sheet and applying
* other specific styles requested.
* @private
*/
InfoBox.prototype.setBoxStyle_ = function () {

    var i, boxStyle;

    if (this.div_) {

        // Apply style values from the style sheet defined in the boxClass parameter:
        this.div_.className = this.boxClass_;

        // Clear existing inline style values:
        this.div_.style.cssText = "";

        // Apply style values defined in the boxStyle parameter:
        boxStyle = this.boxStyle_;
        for (i in boxStyle) {

            if (boxStyle.hasOwnProperty(i)) {

                this.div_.style[i] = boxStyle[i];
            }
        }

        // Fix up opacity style for benefit of MSIE:
        //
        if (typeof this.div_.style.opacity !== "undefined" && this.div_.style.opacity !== "") {

            this.div_.style.filter = "alpha(opacity=" + (this.div_.style.opacity * 100) + ")";
        }

        // Apply required styles:
        //
        this.div_.style.position = "absolute";
        this.div_.style.visibility = 'hidden';
        if (this.zIndex_ !== null) {

            this.div_.style.zIndex = this.zIndex_;
        }
    }
};

/**
* Get the widths of the borders of the InfoBox.
* @private
* @return {Object} widths object (top, bottom left, right)
*/
InfoBox.prototype.getBoxWidths_ = function () {

    var computedStyle;
    var bw = { top: 0, bottom: 0, left: 0, right: 0 };
    var box = this.div_;

    if (document.defaultView && document.defaultView.getComputedStyle) {

        computedStyle = box.ownerDocument.defaultView.getComputedStyle(box, "");

        if (computedStyle) {

            // The computed styles are always in pixel units (good!)
            bw.top = parseInt(computedStyle.borderTopWidth, 10) || 0;
            bw.bottom = parseInt(computedStyle.borderBottomWidth, 10) || 0;
            bw.left = parseInt(computedStyle.borderLeftWidth, 10) || 0;
            bw.right = parseInt(computedStyle.borderRightWidth, 10) || 0;
        }

    } else if (document.documentElement.currentStyle) { // MSIE

        if (box.currentStyle) {

            // The current styles may not be in pixel units, but assume they are (bad!)
            bw.top = parseInt(box.currentStyle.borderTopWidth, 10) || 0;
            bw.bottom = parseInt(box.currentStyle.borderBottomWidth, 10) || 0;
            bw.left = parseInt(box.currentStyle.borderLeftWidth, 10) || 0;
            bw.right = parseInt(box.currentStyle.borderRightWidth, 10) || 0;
        }
    }

    return bw;
};

/**
* Invoked when <tt>close</tt> is called. Do not call it directly.
*/
InfoBox.prototype.onRemove = function () {

    if (this.div_) {

        this.div_.parentNode.removeChild(this.div_);
        this.div_ = null;
    }
};

/**
* Draws the InfoBox based on the current map projection and zoom level.
*/
InfoBox.prototype.draw = function () {

    this.createInfoBoxDiv_();

    var pixPosition = this.getProjection().fromLatLngToDivPixel(this.position_);

    this.div_.style.left = (pixPosition.x + this.pixelOffset_.width) + "px";

    if (this.alignBottom_) {
        this.div_.style.bottom = -(pixPosition.y + this.pixelOffset_.height) + "px";
    } else {
        this.div_.style.top = (pixPosition.y + this.pixelOffset_.height) + "px";
    }

    if (this.isHidden_) {

        this.div_.style.visibility = 'hidden';

    } else {

        this.div_.style.visibility = "visible";
    }
};

/**
* Sets the options for the InfoBox. Note that changes to the <tt>maxWidth</tt>,
*  <tt>closeBoxMargin</tt>, <tt>closeBoxURL</tt>, and <tt>enableEventPropagation</tt>
*  properties have no affect until the current InfoBox is <tt>close</tt>d and a new one
*  is <tt>open</tt>ed.
* @param {InfoBoxOptions} opt_opts
*/
InfoBox.prototype.setOptions = function (opt_opts) {
    if (typeof opt_opts.boxClass !== "undefined") { // Must be first

        this.boxClass_ = opt_opts.boxClass;
        this.setBoxStyle_();
    }
    if (typeof opt_opts.boxStyle !== "undefined") { // Must be second

        this.boxStyle_ = opt_opts.boxStyle;
        this.setBoxStyle_();
    }
    if (typeof opt_opts.content !== "undefined") {

        this.setContent(opt_opts.content);
    }
    if (typeof opt_opts.disableAutoPan !== "undefined") {

        this.disableAutoPan_ = opt_opts.disableAutoPan;
    }
    if (typeof opt_opts.maxWidth !== "undefined") {

        this.maxWidth_ = opt_opts.maxWidth;
    }
    if (typeof opt_opts.pixelOffset !== "undefined") {

        this.pixelOffset_ = opt_opts.pixelOffset;
    }
    if (typeof opt_opts.alignBottom !== "undefined") {

        this.alignBottom_ = opt_opts.alignBottom;
    }
    if (typeof opt_opts.position !== "undefined") {

        this.setPosition(opt_opts.position);
    }
    if (typeof opt_opts.zIndex !== "undefined") {

        this.setZIndex(opt_opts.zIndex);
    }
    if (typeof opt_opts.closeBoxMargin !== "undefined") {

        this.closeBoxMargin_ = opt_opts.closeBoxMargin;
    }
    if (typeof opt_opts.closeBoxURL !== "undefined") {

        this.closeBoxURL_ = opt_opts.closeBoxURL;
    }
    if (typeof opt_opts.infoBoxClearance !== "undefined") {

        this.infoBoxClearance_ = opt_opts.infoBoxClearance;
    }
    if (typeof opt_opts.isHidden !== "undefined") {

        this.isHidden_ = opt_opts.isHidden;
    }
    if (typeof opt_opts.enableEventPropagation !== "undefined") {

        this.enableEventPropagation_ = opt_opts.enableEventPropagation;
    }

    if (this.div_) {

        this.draw();
    }
};

/**
* Sets the content of the InfoBox.
*  The content can be plain text or an HTML DOM node.
* @param {string|Node} content
*/
InfoBox.prototype.setContent = function (content) {
    this.content_ = content;

    if (this.div_) {

        if (this.closeListener_) {

            google.maps.event.removeListener(this.closeListener_);
            this.closeListener_ = null;
        }

        // Odd code required to make things work with MSIE.
        //
        if (!this.fixedWidthSet_) {

            this.div_.style.width = "";
        }

        if (typeof content.nodeType === "undefined") {
            this.div_.innerHTML = this.getCloseBoxImg_() + content;
        } else {
            this.div_.innerHTML = this.getCloseBoxImg_();
            this.div_.appendChild(content);
        }

        // Perverse code required to make things work with MSIE.
        // (Ensures the close box does, in fact, float to the right.)
        //
        if (!this.fixedWidthSet_) {
            this.div_.style.width = this.div_.offsetWidth + "px";
            if (typeof content.nodeType === "undefined") {
                this.div_.innerHTML = this.getCloseBoxImg_() + content;
            } else {
                this.div_.innerHTML = this.getCloseBoxImg_();
                this.div_.appendChild(content);
            }
        }

        this.addClickHandler_();
    }

    /**
    * This event is fired when the content of the InfoBox changes.
    * @name InfoBox#content_changed
    * @event
    */
    google.maps.event.trigger(this, "content_changed");
};

/**
* Sets the geographic location of the InfoBox.
* @param {LatLng} latlng
*/
InfoBox.prototype.setPosition = function (latlng) {

    this.position_ = latlng;

    if (this.div_) {

        this.draw();
    }

    /**
    * This event is fired when the position of the InfoBox changes.
    * @name InfoBox#position_changed
    * @event
    */
    google.maps.event.trigger(this, "position_changed");
};

/**
* Sets the zIndex style for the InfoBox.
* @param {number} index
*/
InfoBox.prototype.setZIndex = function (index) {

    this.zIndex_ = index;

    if (this.div_) {

        this.div_.style.zIndex = index;
    }

    /**
    * This event is fired when the zIndex of the InfoBox changes.
    * @name InfoBox#zindex_changed
    * @event
    */
    google.maps.event.trigger(this, "zindex_changed");
};

/**
* Returns the content of the InfoBox.
* @returns {string}
*/
InfoBox.prototype.getContent = function () {

    return this.content_;
};

/**
* Returns the geographic location of the InfoBox.
* @returns {LatLng}
*/
InfoBox.prototype.getPosition = function () {

    return this.position_;
};

/**
* Returns the zIndex for the InfoBox.
* @returns {number}
*/
InfoBox.prototype.getZIndex = function () {

    return this.zIndex_;
};

/**
* Shows the InfoBox.
*/
InfoBox.prototype.show = function () {

    this.isHidden_ = false;
    if (this.div_) {
        this.div_.style.visibility = "visible";
    }
};

/**
* Hides the InfoBox.
*/
InfoBox.prototype.hide = function () {

    this.isHidden_ = true;
    if (this.div_) {
        this.div_.style.visibility = "hidden";
    }
};

/**
* Adds the InfoBox to the specified map or Street View panorama. If <tt>anchor</tt>
*  (usually a <tt>google.maps.Marker</tt>) is specified, the position
*  of the InfoBox is set to the position of the <tt>anchor</tt>. If the
*  anchor is dragged to a new location, the InfoBox moves as well.
* @param {Map|StreetViewPanorama} map
* @param {MVCObject} [anchor]
*/
InfoBox.prototype.open = function (map, anchor) {

    var me = this;

    if (anchor) {

        this.position_ = anchor.getPosition();
        this.moveListener_ = google.maps.event.addListener(anchor, "position_changed", function () {
            me.setPosition(this.getPosition());
        });
    }

    this.setMap(map);

    if (this.div_) {

        this.panBox_();
    }
};

/**
* Removes the InfoBox from the map.
*/
InfoBox.prototype.close = function () {

    if (this.closeListener_) {

        google.maps.event.removeListener(this.closeListener_);
        this.closeListener_ = null;
    }

    if (this.eventListener1_) {

        google.maps.event.removeListener(this.eventListener1_);
        google.maps.event.removeListener(this.eventListener2_);
        google.maps.event.removeListener(this.eventListener3_);
        google.maps.event.removeListener(this.eventListener4_);
        this.eventListener1_ = null;
        this.eventListener2_ = null;
        this.eventListener3_ = null;
        this.eventListener4_ = null;
    }

    if (this.moveListener_) {

        google.maps.event.removeListener(this.moveListener_);
        this.moveListener_ = null;
    }

    if (this.contextListener_) {

        google.maps.event.removeListener(this.contextListener_);
        this.contextListener_ = null;
    }

    this.setMap(null);
};