js 添加长时间title（转）

//加载title

//***********默认设置定义.*********************
tPopWait=50;//停留tWait豪秒后显示提示。
tPopShow=500000;//显示tShow豪秒后关闭提示
showPopStep=20;
popOpacity=99;
//***************内部变量定义*****************
sPop=null;
curShow=null;
tFadeOut=null;
tFadeIn=null;
tFadeWaiting=null;
document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { background-color: #F3F3F5;color:#000000; border: 1px #000000 solid;font-size:0.7em; 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 split_str(string,words_per_line) {
var output_string = string.substring(0,1); //取出i=0时的字，避免for循环里换行时多次判断i是否为0
var count =1;
for(var i=1;i<string.length;i++) {
if(i%25 == 0) {
output_string += "<br/>";
count++;
}
output_string += string.substring(i,i+1);
}
document.getElementById("dypopLayer").style.height=20*count+"px";

return output_string;
}
function showIt(){
dypopLayer.className=popStyle;
dypopLayer.innerHTML=split_str(sPop);
popWidth=dypopLayer.clientWidth;
popHeight=dypopLayer.clientHeight;
popLeftAdjust=0;
popTopAdjust=0;
//此处设置Title显示的位置
// 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.documentElement.scrollLeft+popLeftAdjust;
dypopLayer.style.top=MouseY+12+document.documentElement.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;
function CheckAll(form) {
for (var i=0;i<form.elements.length;i++) {
var e = form.elements[i];
if (e.name != 'chkall') e.checked = form.chkall.checked;
}
}// JavaScript Document
//加载title 结束