$(document).ready(function()
{    
    $(function()
    {     
        var pID="";           
        $('.ent').click(function(){            
           var ID=$(this).attr("ID");
            $('#fr_chfood').attr("src","chfoodnew.aspx?tmenu="+ID);		
            //$(window.parent.document).find("#fr_chfood").attr("src","chfoodnew.aspx?tmenu="+$(this).attr("ID"));
		    scrollTo(0,0);
		    $('#'+ID).css("background","#FFCC66");		   
		    if(pID!="")
		    {
		        $('#'+pID).css("background","");
		    }
		    pID=ID;
        });
        
    });
    
});