function openWindow(URL,width,height)
{
    day = new Date();
    id = day.getTime();
    eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width="+width+",height="+height+",left = 50,top = 50');");
    return false;
}

function tellafriend(id,categ){
	var u = "tellafriend.php?id="+id+"&c="+categ;
	return openWindow(u,'360','400');
}