function popwin(url)                    
     {                    
        window.open(url,"a","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=576,height=450,top=0,left=0");       }
function look()                    
     {                    
        window.open("look.asp","b","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=520,height=500,top=0,left=0");       }