/*
 * Javascript Loader 
 */
function loadSecureScript(sScriptSrc) {
      if (typeof(document._scripts) == 'undefined'){
        document._scripts = new Array();
        loadScript(sScriptSrc);
      } else {
        var bLoaded = false;
        for (i=0; i<document._scripts.length; i++){
          if (document._scripts[i] == sScriptSrc){
            bLoaded = true;
            break;
          }
        }
        if (!bLoaded)
          loadScript(sScriptSrc);
      }
      }
  function loadScript(sScriptSrc) {
      var head = document.getElementsByTagName('head')[0];
      var script= document.createElement('script');
      script.type= 'text/javascript';
      script.src= sScriptSrc;
      head.appendChild(script);  
      document._scripts.push(sScriptSrc);
 }