function popmusic(URL) { var popup_width = 300 var popup_height = 220 day = new Date(); id = day.getTime(); eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,left = 100,top = 100,width='+popup_width+',height='+popup_height+'');"); }