页面上的可鼠标移动内嵌页面层，并有关闭按钮，背景不可点击

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页面上的可鼠标移动内嵌页面层，并有关闭按钮，背景不可点击

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
<HTML>
<HEAD>
<META http-equiv='Content-Type' content='text/html; charset=gb2312'>
<TITLE>页面上的可鼠标移动内嵌页面层，并有关闭按钮，背景不可点击</TITLE>
<STYLE type=text/css>
#floater {}{
LEFT: 241px; POSITION: absolute; TOP: 55px; VISIBILITY: visible; WIDTH: 160px; Z-INDEX: 10;z-index:101;
}
</STYLE>

<style type="text/css">
.divmark{}{
   position: absolute;
   z-index:100;
   top: 0px;
   left: 0px;
   background-color:#000;
   filter:alpha(opacity=30);
}
</style>

<script>

</script>
</HEAD>
<SCRIPT language=JavaScript>
self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;

function heartBeat() {
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }                              if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {
percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelTop += percent;
if(NS) document.floater.top += percent;
lastScrollY = lastScrollY + percent;
}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelLeft += percent;
if(NS) document.floater.left += percent;
lastScrollX = lastScrollX + percent;
}
}


function checkFocus(x,y) {
stalkerx = document.floater.pageX;
stalkery = document.floater.pageY;
stalkerwidth = document.floater.clip.width;
stalkerheight = document.floater.clip.height;
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
else return false;
}
function grabIt(e) {
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("floater") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; }
}
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.floater;
stalkerTouchedX = e.pageX-document.floater.pageX;
StalkerTouchedY = e.pageY-document.floater.pageY;
}
}
return true;
}
function moveIt(e) {
if (whichIt == null) { return false; }
if(IE) {

newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX);     distanceY = (newY - currentY);
currentX = newX;     currentY = newY;
whichIt.style.pixelLeft += distanceX;
whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;     if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft; if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth + 17) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth + 17;
//if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;}
return false;
}
function dropIt() {
whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true;
}

if(NS) {
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt;
}
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt;
}
if(NS || IE) action = window.setInterval("heartBeat()",1);
</SCRIPT>
<BODY style="font-size:12px;">
<div style="float:right;"><a href="JavaScript:void(0);" onClick="showIframeURL('http://www.baidu.com')">百度</a> | <a href="JavaScript:void(0);" onClick="showIframeURL('http://www.google.com')">Google</a></div>

<span align="center" id="floater" style="HEIGHT: 300px; WIDTH: 500px; border:solid #cccccc 1px; border-top-2px;font-size:12px;display:none;">
<div style="background:#cccccc;padding:3px;height:12px;"><div style="float:left;">编辑楼号名称</div><div style="float:right;"><a href="JavaScript:void(0);" style="color:black;text-decoration:none;" onClick="MM_showHideLayers('floater','','hide')" title="关闭窗口">[Close]</a></div>
</div>
<iframe id="iframe" width="0" height="0" scrolling="no" frameborder="0" marginwidth="0" marginheight="0" style="clear:both;" ></iframe>
</span>
<div id="overlay" class="divmark"></div>
</BODY></HTML>
<script language="javascript">
document.all.overlay.oncontextmenu = function(){
return false;
};
</script>

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原文地址：https://www.cnblogs.com/timy/p/923924.html