<script language="javascript" src="ad.js"></script>
ad.js内容如下:
//广告图片
var mqycn_ad_img="img/ad.gif"
//广告连接
var mqycn_ad_href="http://hi.baidu.com/mqycn"
var mqycn_outhtml
mqycn_outhtml="<a href=\""+mqycn_ad_href+"\" target=\"_blank\">"
mqycn_outhtml+="<img src=\""+mqycn_ad_img+"\" width=\"468\" height=\"60\" style=\"border:none\"></a>"
document.write(mqycn_outhtml)
可以遮挡ie6下的select元素 但是在ie6下div没有透明度；弹出的div可以一直在浏览器屏幕中间显示 。
代码：
var _CalF = { //便捷方法
$ : function(id){return document.getElementById(id)},
create : function(id){return document.createElement(id)},
append : function(id){return document.body.appendChild(id)},
remove : function(id){return document.body.removeChild(id)}
}
function popup(openID,conID,closeID){
this.onclick(openID,conID,closeID)
}
popup.prototype = {
cssStyle : "width:100%position:absoluteleft:0top:0filter:alpha(opacity = 50)opacity:0.5border:0overflow:auto",
createShadowDiv : function(){ //背景遮罩
var shadowDiv = _CalF.create("div")
shadowDiv.id = "shadowDiv"
shadowDiv.style.cssText = this.cssStyle
shadowDiv.style.height = document.body.scrollHeight + "px"
shadowDiv.style.backgroundColor = "#000"
shadowDiv.style.zindex = 100
_CalF.append(shadowDiv)
},
createIframe : function(){ //iframe
var iframe = _CalF.create("iframe")
iframe.id = "shadowIframe"
iframe.style.cssText = this.cssStyle
iframe.style.height = document.body.scrollHeight + "px"
iframe.style.zindex = 99
_CalF.append(iframe)
},
removeDiv : function(){
_CalF.remove(_CalF.$("shadowDiv"))
_CalF.remove(_CalF.$("shadowIframe"))
},
onclick : function(openID,conID,closeID){
var that = this
_CalF.$(openID).onclick = function(){
if(window.ActiveXObject){ //ie6
if(!window.XMLHttpRequest){
document.body.style.cssText = "_background-image: url(about:blank)_background-attachment: fixed"
}
}
that.createIframe()
that.createShadowDiv()
_CalF.$(conID).style.display = "block"
}
document.getElementById(closeID).onclick = function(){
_CalF.$(conID).style.display = "none"
that.removeDiv()
}
}
}
var bt = new popup("bt","orderMsg","close")
</script>
</body>
</html>
