//***********默认设置定义.*********************
tPopWait=1;//停留tWait毫秒后显示提示。
tPopShow=3000;//显示tShow毫秒后关闭提示
showPopStep=25;
popOpacity=100;
pltsoffsetX=1;
pltsoffsetY=30;

//***************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: #FFFFFF; border: 1px #cccccc solid; 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='zzzpopLayer' style='position:absolute;z-index:1000;' class='cPopText'></div>");

function mouseXY(ev)
{
	if(ev.pageX || ev.pageY){
	   return {x:ev.pageX, y:ev.pageY};
	 }
	 return {
		 x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
		 y:ev.clientY + document.body.scrollTop - document.body.clientTop
	 };
}
function showPopupText(ev){
var o=event.srcElement;
ev=ev || window.event;
var mousePos=mouseXY(ev)
	//MouseX=event.x;
	//MouseY=event.y;
	MouseX=mousePos.x;
	MouseY=mousePos.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);
				return;
				zzzpopLayer.className=popStyle;
				zzzpopLayer.innerHTML=sPop;
				if(!document.all)
				{
					zzzpopLayer.style.left=MouseX;
					zzzpopLayer.style.top=MouseY;
				}
				else
				{
					if(MouseX+document.documentElement.scrollLeft>document.body.clientWidth)
						zzzpopLayer.style.left=MouseX+document.documentElement.scrollLeft-zzzpopLayer.clientWidth;
					else
						zzzpopLayer.style.left=MouseX+document.documentElement.scrollLeft;
					if(MouseY+document.documentElement.scrollTop+zzzpopLayer.clientHeight>document.documentElement.clientHeight)
					{
						zzzpopLayer.style.top=MouseY+document.documentElement.scrollTop-zzzpopLayer.clientHeight;
					}
					else
						zzzpopLayer.style.top=MouseY+document.documentElement.scrollTop;
				}
				zzzpopLayer.style.filter="Alpha(Opacity=100)";
			}
			
	}
}

function showIt(){
		zzzpopLayer.className=popStyle;
		zzzpopLayer.innerHTML=sPop;
		popWidth=zzzpopLayer.clientWidth;
		popHeight=zzzpopLayer.clientHeight;
		if(MouseX+pltsoffsetX+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24
			else popLeftAdjust=0;
		if(MouseY+pltsoffsetY+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24
			else popTopAdjust=0;
		//alert(MouseX+pltsoffsetX+popWidth);
		if(!document.all)
		{
			zzzpopLayer.style.left=MouseX+popLeftAdjust;
			zzzpopLayer.style.top=MouseY+popTopAdjust;	
		}
		else
		{
			zzzpopLayer.style.left=MouseX+document.documentElement.scrollLeft+popLeftAdjust;
			if(MouseY+document.documentElement.scrollTop+popTopAdjust+popHeight>document.documentElement.scrollTop+document.documentElement.clientHeight)
				zzzpopLayer.style.top=MouseY+document.documentElement.scrollTop+popTopAdjust-popHeight;
			else
				zzzpopLayer.style.top=MouseY+document.documentElement.scrollTop+popTopAdjust;
		}
		zzzpopLayer.style.filter="Alpha(Opacity=0)";
		fadeOut();
}

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

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