请教各位！！ 当鼠标指文字时，出现跟随鼠标的方框补充说明是怎样的代码？
当鼠标指文字时，出现跟随鼠标的方框补充说明，
当鼠标走开了又看不到说明文字，请问这是怎样做出来的，
请知道的高人讲一下方法或给片代码为谢！！！！
参考答案:<a href='xx.htm' title="wo shi da ben zhu">wanxiao</a> 这种也行，但是要有一方框就要用到JS了 我这有一个例子你自己去根据你的需求去改一下就可以用了
<script language="JavaScript" src="Popup.js"></script> <a href="#" title="aaa;asdfssssssssssssssssss<br>sdfsd sdfffffffffffffffffff<br>dddddddddddddddddddddddddddddddd">sdfads</a>
Popup.js文件是
var pltsPop=null;
var pltsoffsetX = 15; // 弹出窗口位于鼠标左侧或者右侧的距离；3-12 合适
var pltsoffsetY = 15; // 弹出窗口位于鼠标下方的距离；3-12 合适
var pltsPopbg="#FFFFEE"; //背景色
var pltsPopfg="#111111"; //前景色
var pltsTitle="";
document.write('<style>.title_th{background-image: url(title2.gif);color: #ffffff;font-size: 12px;}td.TableBody1{background-color: #ffffff;}.tableBorder1{background-color: #1c591c;}</style>');
document.write('<div style="position: absolute; z-index: -1;top: -100"><table><tr><td class=title_th> </td></tr></table></div>');
document.write('<div id=pltsTipLayer style="display: none;position: absolute; z-index:10001"></div>');
function pltsinits()
{
document.onmouseover = plts;
document.onmousemove = moveToMouseLoc;
}
function plts()
{ var o=event.srcElement;
if(o.alt!=null && o.alt!=""){o.dypop=o.alt;o.alt=""};
if(o.title!=null && o.title!=""){o.dypop=o.title;o.title=""};
pltsPop=o.dypop;
if(pltsPop!=null&&pltsPop!=""&&typeof(pltsPop)!="undefined")
{
pltsTipLayer.style.left=-1000;
pltsTipLayer.style.display='';
var Msg=pltsPop.replace(/\n/g,"<br>");
Msg=Msg.replace(/\0x13/g,"<br>");
var re=/\{(.[^\{]*)\}/ig;
if(!re.test(Msg))pltsTitle=" ^椰子屋下载站^ - <font face='Arial'>2006新版</font> ";
else{
re=/\{(.[^\{]*)\}(.*)/ig;
pltsTitle=Msg.replace(re,"$1")+" ";
re=/\{(.[^\{]*)\}/ig;
Msg=Msg.replace(re,"");
Msg=Msg.replace("<br>","");}
var attr=(document.location.toString().toLowerCase().indexOf("list.asp")>0?"nowrap":"");
var content =
'<table style="FILTER:alpha(opacity=90) shadow(color=#bbbbbb,direction=135);" id=toolTipTalbe border=0><tr><td width="100%"><table class=tableborder1 cellspacing="1" cellpadding="0" style="width:100%">'+
'<tr id=pltsPoptop><td height=15 valign=middle class=title_th><b><p id=topleft align=left> ↖'+pltsTitle+'</p><p id=topright align=right style="display:none">'+pltsTitle+'↗ </font></b></td></tr>'+
'<tr><td '+attr+' class=tablebody1 style="padding-left:14px;padding-right:14px;padding-top: 6px;padding-bottom:6px;line-height:135%; color:#800080">'+Msg+'</td></tr>'+
'<tr id=pltsPopbot style="display:none"><th height=15 valign=middle class=title_th><b><p id=botleft align=left> ↙'+pltsTitle+'</p><p id=botright align=right style="display:none">'+pltsTitle+'↘ </font></b></th></tr>'+
'</table></td></tr></table>';
pltsTipLayer.innerHTML=content;
toolTipTalbe.style.width=Math.min(pltsTipLayer.clientWidth,document.body.clientWidth/2.2);
moveToMouseLoc();
return true;
}
else
{
pltsTipLayer.innerHTML='';
pltsTipLayer.style.display='none';
return true;
}
}
function moveToMouseLoc()
{
if(pltsTipLayer.innerHTML=='')return true;
var MouseX=event.x;
var MouseY=event.y;
//window.status=event.y;
var popHeight=pltsTipLayer.clientHeight;
var popWidth=pltsTipLayer.clientWidth;
if(MouseY+pltsoffsetY+popHeight>document.body.clientHeight)
{
popTopAdjust=-popHeight-pltsoffsetY*1.5;
pltsPoptop.style.display="none";
pltsPopbot.style.display="";
}
else
{
popTopAdjust=0;
pltsPoptop.style.display="";
pltsPopbot.style.display="none";
}
if(MouseX+pltsoffsetX+popWidth>document.body.clientWidth)
{
popLeftAdjust=-popWidth-pltsoffsetX*2;
topleft.style.display="none";
botleft.style.display="none";
topright.style.display="";
botright.style.display="";
}
else
{
popLeftAdjust=0;
topleft.style.display="";
botleft.style.display="";
topright.style.display="none";
botright.style.display="none";
}
pltsTipLayer.style.left=MouseX+pltsoffsetX+document.body.scrollLeft+popLeftAdjust;
pltsTipLayer.style.top=MouseY+pltsoffsetY+document.body.scrollTop+popTopAdjust;
return true;
}
pltsinits();