function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
<!--ªí®æ©³¦âÅÜ´«
function changeBgcolor(t) {
 t.style.background="#2F172F";
}
function reBgcolor(t) {
 t.style.background="url(images/tb_bg.gif)";
}
-->