//Geovin Du
    var flagsloaded = false;
  function loadFlags () {
   if ( !flagsloaded ) {
    var listel = document.getElementById( "dropdownflag" );   
    listel.options[0].style.background =  "url('http://www.dupcit.com/images/flags/hk.png') no-repeat right";  
    listel.options[1].style.background =  "url('http://www.dupcit.com/images/flags/zh.png') no-repeat right";  
    listel.options[2].style.background =  "url('http://www.dupcit.com/images/flags/en.png') no-repeat right";  
    listel.options[3].style.background =  "url('http://www.dupcit.com/images/flags/fr.png') no-repeat right";  
    listel.options[4].style.background =  "url('http://www.dupcit.com/images/flags/kr.png') no-repeat right";  
    //listel.options[5].style.background =  "url('images/flags/pt.png') no-repeat right";  
    //listel.options[6].style.background =  "url('images/flags/ja.png') no-repeat right";  
    //listel.options[7].style.background =  "url('images/flags/nl.png') no-repeat right";  
    //listel.options[8].style.background =  "url('images/flags/it.png') no-repeat right";  
    //listel.options[9].style.background =  "url('images/flags/kr.png') no-repeat right";   onclick="loadFlags();"
    flagsloaded = true;
   }
  }