通用弹出层页面(兼容IE、firefox)可关闭控制宽高及屏蔽背景

<style type="text/css">...
#LockWindows{...}{
position:absolute; top:10px; left:10px; background-color:#777777; z-index:2; display:none;
/**//* Moz Family使用私有属性-moz-opacity: 0.70 */
/**//* IE 使用私有属性filter */
/**//* 标准属性opacity支持CSS3的浏览器（FF 1.5也支持）*/
opacity: 0.70;
filter : progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=70,finishOpacity=100);
width:expression(documentElement.clientWidth < 900?(documentElement.clientWidth==0?(body.clientWidth<900?'900':'auto'):'900px'):'auto');
}
#WindowDIV{...}{position:absolute; z-index:3; background-color:#FFFFFF; border:#000000 solid 1px; display:none;}
</style>

function _displaySelect()...{
var selects=document.getElementsByTagName("select");//整个页面的所有下拉框
var objWindow = $("WindowDIV");
var DIVselects = objWindow.getElementsByTagName("select");//整个弹出层的所有下拉框
for(var i=0;i<selects.length;i++)...{
if(selects[i].style.visibility)...{
selects[i].style.visibility="";
}else...{
selects[i].style.visibility="hidden";
for(var j=0; i<DIVselects.length; j++)...{
DIVselects[j].style.visibility="";
}
}
}
}
function openWindows(width,height)...{
var objWindow = $("WindowDIV");
var objLock = $("LockWindows");//这个是用于在IE下屏蔽内容用
objLock.style.display="block";
objLock.style.width=document.body.clientWidth+"px";
objLock.style.height=document.body.clientHeight+"px";
objLock.style.minWidth=document.body.clientWidth+"px";
objLock.style.minHeight=document.body.clientHeight+"px";
// 判断输入的宽度和高度是否大于当前浏览器的宽度和高度
if(width>document.body.clientWidth) width = document.body.clientWidth+"px";
if(height>document.body.clientHeight) height = document.body.clientHeight+"px";
objWindow.style.display='block';
objWindow.style.width = width+"px";
objWindow.style.height = height+"px";
// 将弹出层居中
objWindow.style.left=(document.body.offsetWidth-width)/2+"px";
objWindow.style.top=(document.body.offsetHeight-height)/2+"px";
_displaySelect();
}
function hiddenWindows()...{
$("LockWindows").style.display='none';
$("WindowDIV").style.display='none';
_displaySelect();
}
</script>
<div id="LockWindows">&nbsp;</div>
<div id="WindowDIV">
<%...@ include file="../examination/openEditerDiv.jsp"%>
</div>