onmouseover如何做到这一点阿？
鼠标放上去的时候，显示一个div，div里面有个超链接到别的网页中？
请参见此图：
http://tkfiles.storage.msn.com/x1pqP5noGPWAA4u4RboDBm-uVgbyHp9QCyU5Q-DNpEkoBLK8cvqxX-T5GP4KF8qcwy121f5jUNTupLOvM8ZQ2URNh4IHapVr8QzXALRyBacmgOBLIsLSnV4PHv_ahrPc0Ak852dNImIwuJ1rbfHiXj-xA

------解决方案--------------------
<script language=javascript>
<!--
//***********默认设置定义.*********************
tPopWait=1; //停留tWait豪秒后显示提示。
tPopShow=60000; //显示tShow豪秒后关闭提示
showPopStep=20;
popOpacity=95;
fontcolor= "#333333 ";
bgcolor= "#f7f7f7 ";
bordercolor= "#000000 ";

//***************内部变量定义*****************
sPop=null;
curShow=null;
tFadeOut=null;
tFadeIn=null;
tFadeWaiting=null;

document.write( " <style type= 'text/css 'id= 'defaultPopStyle '> ");
document.write( ".cPopText { background-color: " + bgcolor + ";color: " + fontcolor + "; border: 1px " + bordercolor + " solid;font-color: font-size: 12px; padding-right: 4px; padding-left: 4px; height: 20px; padding-top: 2px; padding-bottom: 2px; filter: Alpha(Opacity=0)} ");
document.write( " </style> ");
document.write( " <div id= 'dypopLayer ' style= 'position:absolute;z-index:1000; ' class= 'cPopText '> </div> ");


function showPopupText(){
var o=event.srcElement;
MouseX=event.x;
MouseY=event.y;
if(o.alt!=null && o.alt!= " "){o.dypop=o.alt;o.alt= " "};
if(o.title!=null && o.title!= " "){o.dypop=o.title;o.title= " "};
if(o.dypop!=sPop) {
sPop=o.dypop;
clearTimeout(curShow);
clearTimeout(tFadeOut);
clearTimeout(tFadeIn);
clearTimeout(tFadeWaiting);
if(sPop==null || sPop== " ") {
dypopLayer.innerHTML= " ";
dypopLayer.style.filter= "Alpha() ";
dypopLayer.filters.Alpha.opacity=0;
}
else {
if(o.dyclass!=null) popStyle=o.dyclass
else popStyle= "cPopText ";
curShow=setTimeout( "showIt() ",tPopWait);
}

}
}

function showIt(){
dypopLayer.className=popStyle;
dypopLayer.innerHTML=sPop;
popWidth=dypopLayer.clientWidth;
popHeight=dypopLayer.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;
dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;
dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
dypopLayer.style.filter= "Alpha(Opacity=0) ";
fadeOut();
}

function fadeOut(){
if(dypopLayer.filters.Alpha.opacity <popOpacity) {
dypopLayer.filters.Alpha.opacity+=showPopStep;
tFadeOut=setTimeout( "fadeOut() ",1);
}
else {
dypopLayer.filters.Alpha.opacity=popOpacity;
tFadeWaiting=setTimeout( "fadeIn() ",tPopShow);
}
}

function fadeIn(){
if(dypopLayer.filters.Alpha.opacity> 0) {
dypopLayer.filters.Alpha.opacity-=1;
tFadeIn=setTimeout( "fadeIn() ",1);
}
}
document.onmouseover=showPopupText;
-->
</script>

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