function toolstipShow(divName){
  var divId = document.getElementById(divName);
	if(divId){
		divId.style.display     = "block";
		divId.style.top     = document.getElementById(divName).offsetTop - 20;
		divId.style.left     = document.getElementById(divName).offsetLeft + 20;
	}	
	
}

function toolstipHide(divName){
  var divId = document.getElementById(divName);
	if(divId){
		divId.style.display     = "none";
		divId.style.top     = document.getElementById(divName).offsetTop + 20;
		divId.style.left     = document.getElementById(divName).offsetLeft - 20;
	}	
}