var tipTimer;
function locateObject(n, d) 
{
  var p,i,x;  
  if(!d) 
	  d=document; 
  if((p=n.indexOf("?"))>0&&parent.frames.length) 
	  {
          d=parent.frames[n.substring(p+1)].document; 
		  n=n.substring(0,p);
	  }
  if(!(x=d[n])&&d.all) 
	  x=d.all[n]; 
  for (i=0;!x&&i<d.forms.length;i++) 
	  x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) 
	  x=locateObject(n,d.layers[i].document); 
  return x;
}
//隐藏层
function hideTooltip(object)
{
	if (document.all)
	{
			locateObject(object).style.visibility="hidden"
			locateObject(object).style.left = 1;
			locateObject(object).style.top = 1;
	return false;
	}
	else if (document.layers)
	{
			locateObject(object).visibility="hide"
			locateObject(object).left = 1;
			locateObject(object).top = 1;
			return false;
	}
	else
			return true;
}
//显示层,object 为网页元素(层的标识),e代表event事件,tipContent是出现的内容
function showTooltip(object,e, tipContent, backcolor, bordercolor, textcolor, displaytime)
{
        window.clearTimeout(tipTimer)
        if (document.all)
                {
                        locateObject(object).style.top=document.body.scrollTop+event.clientY+20

                        locateObject(object).innerHTML='<table style="font-family: 宋体; font-size: 9pt; border: '+bordercolor+'; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; background-color: '+backcolor+'" width="10" border="0" cellspacing="1" cellpadding="1"><tr><td nowrap><font style="font-family: 宋体; font-size: 9pt; color: '+textcolor+'">'+unescape(tipContent)+'</font></td></tr></table> '

                        if ((e.x + locateObject(object).clientWidth) > (document.body.clientWidth + document.body.scrollLeft))
                                {
                                        locateObject(object).style.left = (document.body.clientWidth + document.body.scrollLeft) - locateObject(object).clientWidth-10;
                                }
                        else
                        {
                        locateObject(object).style.left=document.body.scrollLeft+event.clientX
                        }
                locateObject(object).style.visibility="visible"
                tipTimer=window.setTimeout("hideTooltip('"+object+"')", displaytime);
                return true;
                }
        else if (document.layers)
                {
                locateObject(object).document.write('<table width="10" border="0" cellspacing="1" cellpadding="1"><tr bgcolor="'+bordercolor+'"><td><table width="10" border="0" cellspacing="0" cellpadding="2"><tr bgcolor="'+backcolor+'"><td nowrap><font style="font-family: 宋体; font-size: 9pt; color: '+textcolor+'">'+unescape(tipContent)+'</font></td></tr></table></td></tr></table>')
                locateObject(object).document.close()
                locateObject(object).top=e.y+20

                if ((e.x + locateObject(object).clip.width) > (window.pageXOffset + window.innerWidth))
                        {
                                locateObject(object).left = window.innerWidth - locateObject(object).clip.width-10;
                        }
                else
                        {
                        locateObject(object).left=e.x;
                        }
                locateObject(object).visibility="show";
                tipTimer=window.setTimeout("hideTooltip('"+object+"')", displaytime);
                return true;
        }
        else
        {
                return true;
        }
}