document.write(
"<div id=\"tooltip\" style=\"position:absolute;visibility:hidden; padding:3px;border:1px solid #333333;line-height:19px;\
;background-color:#FCFCF3; height: 10px; width:220;left: 38px; top: 96px;z-index: 1\"></div>");

function showtip(text)  //显示链接的说明
{
  if (document.all&&document.readyState=="complete")  //针对IE
  {
  //显示跑马灯,内容就是提示框的内容
  document.all.tooltip.innerHTML="<div vAlign=center><font SIZE=2>"+text+"</font></div>";
  document.all.tooltip.style.pixelLeft= window.event.clientX+document.body.scrollLeft+10;
  document.all.tooltip.style.pixelTop=event.clientY+document.body.scrollTop+10;
   document.all.tooltip.style.visibility="visible";
     //alert(event.clientY);

  }
}

function hidetip()  //隐藏链接的说明
{
if (document.all)
  document.all.tooltip.style.visibility="hidden";
}

function setcolor(fntcolor,bgcolor)
{
  document.all.tooltip.style.bgcolor=bgcolor;
  document.all.tooltip.innerHTML.Color = fntcolor;
}

function showhint(text)
{
      onmousemove=showtip(text);
      onmouseover=showtip(text);
      onmouseout=hidetip();
}