function Open_Win(theURL) { //v2.0
  window.open(theURL,'','scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,location=no,status=no');
}

function chglang(lang) { //v2.0
 if(lang == 'tc'){
   window.location = "../tc/index.php";
 }else if(lang == 'sc'){
   window.location = "../sc/index.php";
 }
}

function change(btnimg,ref) {
   //alert(ref);
   document.images[btnimg].src = ref;
}