<!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> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>css处理下拉列表-这一技客:www.geekso.com</title> <style> .IN { BORDER-RIGHT: #afaeae 1px solid; BORDER-TOP: #afaeae 1px solid; FONT-SIZE: 10pt; BORDER-LEFT: #afaeae 1px solid; COLOR: #7b7b7b; BORDER-BOTTOM: #afaeae 1px solid; FONT-FAMILY: "verdana" } .selectBoxSelectedArea { PADDING-LEFT: 3px; FONT-SIZE: 12px; COLOR: #000000; LINE-HEIGHT: 17px; PADDING-TOP: 1px; BACKGROUND-COLOR: #ffffff } .selectBoxSelectedAreaFocus { PADDING-LEFT: 3px; FONT-SIZE: 12px; COLOR: #333333; LINE-HEIGHT: 17px; PADDING-TOP: 1px; BACKGROUND-COLOR: #ffffff } .selectBoxOption { PADDING-LEFT: 3px; FONT-SIZE: 12px; COLOR: #000000; LINE-HEIGHT: 17px; PADDING-TOP: 2px; BACKGROUND-COLOR: #ffffff } .selectBoxOptionOver { PADDING-LEFT: 3px; FONT-SIZE: 12px; COLOR: #333333; LINE-HEIGHT: 17px; PADDING-TOP: 2px; BACKGROUND-COLOR: #ffffff } .selectBoxOptionInnerLayer { BORDER-RIGHT: #b4b4b4 1px solid; BORDER-TOP: #b4b4b4 1px solid; SCROLLBAR-FACE-COLOR: #ffffff; SCROLLBAR-HIGHLIGHT-COLOR: #b4b4b4; OVERFLOW: auto; BORDER-LEFT: #b4b4b4 1px solid; SCROLLBAR-SHADOW-COLOR: #b4b4b4; SCROLLBAR-3DLIGHT-COLOR: #ffffff; SCROLLBAR-ARROW-COLOR: #838383; SCROLLBAR-TRACK-COLOR: #eaeaea; BORDER-BOTTOM: #b4b4b4 1px solid; SCROLLBAR-DARKSHADOW-COLOR: #ffffff; BACKGROUND-COLOR: #ffffff } </style> </head>
<body > <SCRIPT LANGUAGE="JavaScript"> var nowOpenedSelectBox = ""; var mousePosition = "";
function selectThisValue(thisId,thisIndex,thisValue,thisString) { var objId = thisId; var nowIndex = thisIndex; var valueString = thisString; var sourceObj = document.getElementById(objId); var nowSelectedValue = document.getElementById(objId+"SelectBoxOptionValue"+nowIndex).value; hideOptionLayer(objId); if (sourceObj) sourceObj.value = nowSelectedValue; settingValue(objId,valueString); selectBoxFocus(objId); if (sourceObj.onchange) sourceObj.onchange(); }
function settingValue(thisId,thisString) { var objId = thisId; var valueString = thisString; var selectedArea = document.getElementById(objId+"selectBoxSelectedValue"); if (selectedArea) selectedArea.innerText = valueString; }
function viewOptionLayer(thisId) { var objId = thisId; var optionLayer = document.getElementById(objId+"selectBoxOptionLayer"); if (optionLayer) optionLayer.style.display = ""; nowOpenedSelectBox = objId; setMousePosition("inBox"); }
function hideOptionLayer(thisId) { var objId = thisId; var optionLayer = document.getElementById(objId+"selectBoxOptionLayer"); if (optionLayer) optionLayer.style.display = "none"; }
function setMousePosition(thisValue) { var positionValue = thisValue; mousePosition = positionValue; }
function clickMouse() { if (mousePosition == "out") hideOptionLayer(nowOpenedSelectBox); }
function selectBoxFocus(thisId) { var objId = thisId; var obj = document.getElementById(objId + "selectBoxSelectedValue"); obj.className = "selectBoxSelectedAreaFocus"; obj.focus(); }
function selectBoxBlur(thisId) { var objId = thisId; var obj = document.getElementById(objId + "selectBoxSelectedValue"); obj.className = "selectBoxSelectedArea"; }
function makeSelectBox(thisId) { var downArrowSrc = "http://www.geekso.com/attachment/3j.jpg"; //三角 var downArrowSrcWidth = 16; //宽 var optionHeight = 18; // 高 var optionMaxNum = 7; // var optionInnerLayerHeight = ""; var objId = thisId; var obj = document.getElementById(objId); var selectBoxWidth = parseInt(obj.style.width); var selectBoxHeight = parseInt(obj.style.height); if (obj.options.length > optionMaxNum) optionInnerLayerHeight = "height:"+ (optionHeight * optionMaxNum) + "px"; newSelect = "<table id='" + objId + "selectBoxOptionLayer' cellpadding='0' cellspacing='0' border='0' style='position:absolute;z-index:100;display:none;' onMouseOver="viewOptionLayer('"+ objId + "')" onMouseOut="setMousePosition('out')">"; newSelect += " <tr>"; newSelect += " <td height='" + selectBoxHeight + "' style='cursor:hand;' onClick="hideOptionLayer('"+ objId + "')"></td>"; newSelect += " </tr>"; newSelect += " <tr>"; newSelect += " <td height='1'></td>"; newSelect += " </tr>"; newSelect += " <tr>"; newSelect += " <td bgcolor='#D3D3D3'>"; newSelect += " <div class='selectBoxOptionInnerLayer' style='" + (selectBoxWidth-1) + "px;" + optionInnerLayerHeight + "'>"; newSelect += " <table cellpadding='0' cellspacing='0' border='0' width='100%' style='table-layout:fixed;word-break:break-all;'>"; for (var i=0 ; i < obj.options.length ; i++) { var nowValue = obj.options[i].value; var nowText = obj.options[i].text; newSelect += " <tr>"; newSelect += " <td onMouseOver=this.style.backgroundColor='#FFBA00';return true; onMouseOut=this.style.backgroundColor='FFFFFF';return true; bgcolor=#FFFFFF height='" + optionHeight + "' class='selectBoxOption' onMouseOver="this.className='selectBoxOptionOver'" onMouseOut="this.className='selectBoxOption'" onClick="selectThisValue('"+ objId + "'," + i + ",'" + nowValue + "','" + nowText + "')" style='cursor:hand;' >" + nowText + "</td>"; newSelect += " <input type='hidden' id='"+ objId + "SelectBoxOptionValue" + i + "' value='" + nowValue + "'>"; newSelect += " </tr>"; } newSelect += " </table>"; newSelect += " </div>"; newSelect += " </td>"; newSelect += " </tr>"; newSelect += "</table>"; newSelect += "<table cellpadding='0' cellspacing='1' border='0' bgcolor='#B4B4B4' onClick="viewOptionLayer('"+ objId + "')" style='cursor:hand;'>"; newSelect += " <tr>"; newSelect += " <td style='padding-left:1px' bgcolor='#FFFFFF'>"; newSelect += " <table cellpadding='0' cellspacing='0' border='0'>"; newSelect += " <tr>"; newSelect += " <td><div id='" + objId + "selectBoxSelectedValue' class='selectBoxSelectedArea' style='" + (selectBoxWidth - downArrowSrcWidth - 4) + "px;height:" + (selectBoxHeight - 2) + "px;overflow:hidden;' onBlur="selectBoxBlur('" + objId + "')" ></div></td>"; newSelect += " <td><img src='" + downArrowSrc + "' width='" + downArrowSrcWidth + "' border='0'></td>"; newSelect += " </tr>"; newSelect += " </table>"; newSelect += " </td>"; newSelect += " </tr>"; newSelect += "</table>"; document.write(newSelect); var haveSelectedValue = false; for (var i=0 ; i < obj.options.length ; i++) { if (obj.options[i].selected == true) { haveSelectedValue = true; settingValue(objId,obj.options[i].text); } } if (!haveSelectedValue) settingValue(objId,obj.options[0].text); }
document.onmousedown = clickMouse; </SCRIPT> <Select class="in" id=selectTest style="DISPLAY: none; BACKGROUND: #ffffff; WIDTH: 130px; HEIGHT: 19px" name=search> <OPTION value="" selected>www.geekso.com</OPTION> <OPTION value=name>geekso.com</OPTION> <OPTION value=title>这一技客</OPTION> </Select> <SCRIPT>makeSelectBox("selectTest");</SCRIPT> </body> </html>