显示ToolTIP最终版

<script language="javascript" defer=defer>
//browser detection
    var agt=navigator.userAgent.toLowerCase();
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);

    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
    var is_nav4 = (is_nav && (is_major == 4));
    var is_nav6 = (is_nav && (is_major == 5));
    var is_nav6up = (is_nav && (is_major >= 5));
    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
</script>

<script language="JavaScript">
//tooltip Position
var offsetX = 0;
var offsetY = 5;
var tempX = 0;
var tempY = 0;
var opacity = 100;
var toolTipSTYLE;
function initToolTips(){
  if(document.getElementById){
          toolTipSTYLE = document.getElementById("toolTipLayer").style;
  }
  if(is_ie || is_nav6up)
  {
    toolTipSTYLE.visibility = "visible";
    toolTipSTYLE.display = "none";
    document.onmousemove = moveToMousePos;
  }
}

function moveToMousePos(e)
{
  if(!is_ie){//-(document.body.clientWidth-955)/2
    x = e.clientX + document.documentElement.scrollLeft;
    y = e.pageY - 170;
  }else{
    x = event.x + document.body.scrollLeft;
    y = event.y + document.body.scrollTop;
  }
  toolTipSTYLE.left = x + offsetX+'px';
  toolTipSTYLE.top = y + offsetY+'px';
  return true;
}

function toolTip(v)
{
    if(v!=""&&v!=null&&document.getElementById(v)!=null)
    {
        document.getElementById("toolTipLayer").innerHTML = document.getElementById(v).innerHTML;
        //document.getElementById("toolTipLayer").innerHTML = document.getElementById(v).innerHTML;
        toolTipSTYLE.display='block';
    }
    else
    {
        toolTipSTYLE.visibility = "visible";
        toolTipSTYLE.display = "none"; 
    }
}
</script>




    <div id="toolTipLayer" class="GvMailToolTip"  style="position:absolute; visibility: hidden;left:0;right:0"></div>