function popUp(URL) {
day = new Date();
id = day.getTime();
window.name="main";
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=300,height=300');");
eval("page" + id + ".moveTo(0,0);");
eval("page" + id + ".blur()");
window.focus();
}