快速显示Alt或Title提示信息

时间:2015/12/3 22:20:00来源:互联网 作者:flyso 点击: 830 次
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<script>
 
var sPop = null;
var postSubmited = false;
 
document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { font-family: Tahoma, Verdana; background-color: #FFFFCC; border: 1px #000000 solid; font-size: 12px; padding-right: 4px; padding-left: 4px; line-height: 18px; padding-top: 2px; padding-bottom: 2px; visibility: hidden; filter: Alpha(Opacity=80)}");
 
document.write("</style>");
document.write("<div id='popLayer' style='position:absolute;z-index:1000' class='cPopText'></div>");
 
function showPopupText(event) {
if(event.srcElement) o = event.srcElement; else o = event.target;
MouseX=event.clientX;
MouseY=event.clientY;
if(o.alt!=null && o.alt!="") { o.pop=o.alt;o.alt="" }
if(o.title!=null && o.title!=""){ o.pop=o.title;o.title="" }
if(o.pop!=sPop) {
sPop=o.pop;
if(sPop==null || sPop=="") {
document.getElementById("popLayer").style.visibility="hidden";        
} else {
if(o.dyclass!=null) popStyle=o.dyclass; else popStyle="cPopText";
document.getElementById("popLayer").style.visibility="visible";
showIt();
}
}
}
 
function showIt() {
document.getElementById("popLayer").className=popStyle;
document.getElementById("popLayer").innerHTML=sPop.replace(/<(.*)>/g,"<$1>").replace(/\n/g,"<br>");;
popWidth=document.getElementById("popLayer").clientWidth;
popHeight=document.getElementById("popLayer").clientHeight;
if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24; else popLeftAdjust=0;
if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24; else popTopAdjust=0;
document.getElementById("popLayer").style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;
document.getElementById("popLayer").style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
}
if(!document.onmouseover) {
document.onmouseover = function(e) {
if (!e) showPopupText(window.event); else showPopupText(e);
};
}
</script>


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