function addRolloverEffect(obj,isOver)
	{
		var cells = obj.getElementsByTagName('TD');

		for(var no=0;no<cells.length;no++){
			
			if(isOver)
			{
				cells[no].className = cells[no].className.replace("Odd","Pair"); 
			}
			else
			{
				cells[no].className = cells[no].className.replace("Pair","Odd"); 
			}
		}
	}