function showToolTip(e,text,top,left){
      

        var obj = document.getElementById('bubble_tooltip');
	var obj2 = document.getElementById('bubble_tooltip_content');
	obj2.innerHTML = text;
	obj.style.display = 'block';
	
        if (left==null && top==null){
            var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
            if(navigator.userAgent.toLowerCase().indexOf('safari')>=0)st=0; 
            var leftPos = e.clientX - 100;
            if(leftPos<0)leftPos = 0;
            obj.style.left = (left!=null ? left : leftPos) + 'px';
            obj.style.top = (top!=null ? top : e.clientY - obj.offsetHeight -1 + st) + 'px';
        }
        else{
            obj.style.left = left + 'px';
            obj.style.top = top + 'px';
        }
}	

function hideToolTip()
{
	document.getElementById('bubble_tooltip').style.display = 'none';
	
}