tPopWait=10;	//停留tWait豪秒后显示提示。
tPopShow=4000;	//显示tShow豪秒后关闭提示
showPopStep=10; 	// 显示的距离
popOpacity=100; 	// 默认的透明度

document.write("<style type='text/css' id='defaultPopStyle'>");
document.write(".cPopText { background-color: #FFFFE0; color:#000000; font-size: 10pt; border: 1px #000000 solid;  padding-right: 2px; padding-left: 2px; padding-top: 1px; padding-bottom: 1px; filter: Alpha(Opacity=0)}");
document.write("</style>");
document.write("<div id='dypopLayer' style='position:absolute;z-index:1000;' class='cPopText' dir='rtl'></div>");
document.onmouseover=showPopupText;


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

//********** 函数定义 ****************
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);
           }
}