function addFav(url) {
var top_center,left_center;
top_center = (screen.height/2)-78;
left_center = (screen.width/2)-137;
mywin = window.open(url,"win","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,width=274,height=150,top="+top_center+",left="+left_center+"");
}