var ns4=document.layers;
var ns6=document.getElementById&&!document.all;
var ie4=document.all;
var leftOff = 20;
var topOff = 0;

function showTip(currentObj, objectID)
{
    var x = findPosX(currentObj);
    var y = findPosY(currentObj);
    x += leftOff;
    y += topOff;
    document.getElementById(objectID).style.left = x + "px";
    document.getElementById(objectID).style.top = y + "px";
    document.getElementById(objectID).style.visibility = "visible";
}

function hideTip(objectID)
{
    document.getElementById(objectID).style.visibility = "hidden";
}

function findPosX(obj)
{
    var curleft = 0;
    if(obj.offsetParent)
    while(1) 
        {
        curleft += obj.offsetLeft;
        if(!obj.offsetParent)
        break;
        obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
        
    return curleft;
}

function findPosY(obj)
{
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
            curtop += obj.offsetTop;
            if(!obj.offsetParent)
            break;
            obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    
    return curtop;
}