适用于个人和中小型企业站点的数据量不大的情况下使用

				//***********默认设置定义.*********************
tPopWait=50;//停留tWait毫秒后显示提示。
tPopShow=3000;//显示tShow毫秒后关闭提示
showPopStep=20;
popOpacity=99;
//***************内部变量定义*****************
sPop=null;
curShow=null;
tFadeOut=null;
tFadeIn=null;
tFadeWaiting=null;
document.write("");
document.write(".cPopText { background-color: #ffffff; border: 1px #000000 solid; font-size: 12px; padding-right: 4px; padding-left: 4px; height: 20px; padding-top: 2px; padding-bottom: 2px; filter: Alpha(Opacity=0)}");
document.write("");
document.write("");
function showPopupText(){
var o=event.srcElement;
MouseX=event.x;
MouseY=event.y;
if(o.alt!=null && o.alt!=""){o.zzzpop=o.alt;o.alt=""};
if(o.title!=null && o.title!=""){o.zzzpop=o.title;o.title=""};
if(o.zzzpop!=sPop) {
sPop=o.zzzpop;
clearTimeout(curShow);
clearTimeout(tFadeOut);
clearTimeout(tFadeIn);
clearTimeout(tFadeWaiting); 
if(sPop==null || sPop=="") {
zzzpopLayer.innerHTML="";
zzzpopLayer.style.filter="Alpha()";
zzzpopLayer.filters.Alpha.opacity=0; 
}
else {
if(o.dyclass!=null) popStyle=o.dyclass 
else popStyle="cPopText";
curShow=setTimeout("showIt()",tPopWait);
}
}
}
function showIt(){
zzzpopLayer.className=popStyle;
zzzpopLayer.innerHTML=sPop;
popWidth=zzzpopLayer.clientWidth;
popHeight=zzzpopLayer.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;
zzzpopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;
zzzpopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
zzzpopLayer.style.filter="Alpha(Opacity=0)";
fadeOut();
}
function fadeOut(){
if(zzzpopLayer.filters.Alpha.opacity0) {
zzzpopLayer.filters.Alpha.opacity-=1;
tFadeIn=setTimeout("fadeIn()",1);
}
}
document.onmouseover=showPopupText;