添加提示脚本

<!--
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 = 10;  // 弹出窗口位于鼠标下方的距离;3-12 合适
var pltsPopbg="#FEFEDA"; //背景色
var pltsPopfg="#ABAB98"; //边框
var pltsPopft="#5F5F52" //文字
var pltsTitle="";
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="";
 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 =
  '<iframe style="position:absolute;z-index:-1;100%;height:21px;" scrolling="no" frameborder="0" src="about:blank"></iframe>'+
       '<div id=toolTipTalbe style="font-size:11px;background-color: '+pltsPopbg+';border: 1px solid '+pltsPopfg+';color:'+pltsPopft+'";>'+
       '<div style="margin-right:2px;margin-left:3px;margin-bottom:1px;line-height:18px">'+Msg+'</div>'+
       '</div>';
        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;
 }
  else
 {
     popTopAdjust=0;
 }
 if(MouseX+pltsoffsetX+popWidth>document.body.clientWidth)
 {
  popLeftAdjust=-popWidth-pltsoffsetX*2;
 }
 else
 {
  popLeftAdjust=0;
 }
 pltsTipLayer.style.left=MouseX+pltsoffsetX+document.body.scrollLeft+popLeftAdjust;
 pltsTipLayer.style.top=MouseY+pltsoffsetY+document.body.scrollTop+popTopAdjust;
   return true;
}
pltsinits();

//-->

原文地址:https://www.cnblogs.com/hqbird/p/1415267.html