鼠标滑过出现揭示层效果js代码 javascript（转）

鼠标滑过出现提示层效果js代码 javascript（转）

演示

源码source code：

<htmlxmlns="http://www.w3.org/1999/xhtml"> <head>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312"/> <title>鼠标滑过出现提示层效果js代码javascript</title>
<scripttype="text/javascript"> functionenableTooltips(id){
varlinks,i,h;if(!document.getElementById||!document.getElementsByTagName)return;
AddCss();h=document.createElement("span");
h.id="btc"; h.setAttribute("id","btc");
h.style.position="absolute"; document.getElementsByTagName("body")[0].appendChild(h);
if(id==null)links=document.getElementsByTagName("a"); elselinks=document.getElementById(id).getElementsByTagName("a");
for(i=0;i<links.length;i++){ Prepare(links[i]);
}}functionPrepare(el){
vartooltip,t,b,s,l;t=el.getAttribute("title");
if(t==null||t.length==0)t="link:"; el.removeAttribute("title");
tooltip=CreateEl("span","tooltip"); s=CreateEl("span","top");
s.appendChild(document.createTextNode(t));tooltip.appendChild(s);
b=CreateEl("b","bottom"); l=el.getAttribute("href");
if(l.length>30)ll=l.substr(0,27)+"..."; b.appendChild(document.createTextNode(l));
tooltip.appendChild(b);setOpacity(tooltip);
el.tooltip=tooltip; el.onmouseover=showTooltip;
el.onmouseout=hideTooltip; el.onmousemove=Locate;
}functionshowTooltip(e){document.getElementById("btc").appendChild(this.tooltip);
Locate(e);}functionhideTooltip(e){
vard=document.getElementById("btc"); if(d.childNodes.length>0)d.removeChild(d.firstChild);
}functionsetOpacity(el){el.style.filter="alpha(opacity:95)";
el.style.KHTMLOpacity="0.95"; el.style.MozOpacity="0.95";
el.style.opacity="0.95"; }functionCreateEl(t,c){
varx=document.createElement(t); x.className=c;
x.style.display="block"; return(x);
}functionAddCss(){varl=CreateEl("link");
l.setAttribute("type","text/css");l.setAttribute("rel","stylesheet");
l.setAttribute("href","?.css");l.setAttribute("media","screen");
document.getElementsByTagName("head")[0].appendChild(l);}functionLocate(e){
varposx=0,posy=0; if(e==null)e=window.event;
if(e.pageX||e.pageY){posx=e.pageX;posy=e.pageY;
}elseif(e.clientX||e.clientY){
if(document.documentElement.scrollTop){posx=e.clientX+document.documentElement.scrollLeft;
posy=e.clientY+document.documentElement.scrollTop; }
else{posx=e.clientX+document.body.scrollLeft;
posy=e.clientY+document.body.scrollTop; }
}document.getElementById("btc").style.top=(posy+10)+"px";
document.getElementById("btc").style.left=(posx-20)+"px"; }
</script> <scripttype="text/javascript">
window.onload=function(){enableTooltips()}; </script>
<styletype="text/css"> body{font:76%/1.5Arial,sans-serif;background:#FFF;color:#333}
div#container{width:500px;margin:0auto}h1{color:#3CA3FF;margin:1em00;letter-spacing:-2px}
p{margin:001.7em}a{color:#F60;font-weight:bold}
a:hover{color:#F00}.tooltip{
width:200px;color:#000;font:lighter11px/1.3Arial,sans-serif;
text-decoration:none;text-align:center}.tooltipspan.top{padding:30px8px0;background:url(http://www.51flash.cn/wp-content/uploads/2007/0908/200708171844190.gif)no-repeattop}.tooltipb.bottom{padding:3px8px15px;color:#548912;
background:url(http://www.51flash.cn/wp-content/uploads/2007/0908/200708171844190.gif)no-repeatbottom}</style>
</head> <body>
<divid="container"> <p><ahref="http://www.51flash.cn"title="welcometoyou">51flash.cn</a></p>
</div> </body>
</html>

鼠标滑过出现揭示层效果js代码 javasc

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