if (typeof(RICHFX_INTERFACE_LOADER)=='undefined') {
  RICHFX_INTERFACE_LOADER = 1;
  (function() {
      var scriptName = "richfx"; // set this to filename of this script
      var fullScript = "rfxloader"; // to full script, relative to scriptName parent dir
      var regex = /\/richfx\??/;

      var removeEvent = function (obj,evType, callback) {
        if (obj.removeEventListener)
          obj.removeEventListener(evType, callback, false);
        else if (obj.detachEvent)
          obj.detachEvent("on" + evType, callback);
      }    

      var addEvent = function(obj,evType,callback) {
        if (obj.addEventListener)
          obj.addEventListener(evType, callback, false); 
        else if (obj.attachEvent)
          obj.attachEvent("on"+evType, callback );
        return true;
      }

      var obj = window;
      if ( navigator.userAgent.indexOf('Opera') != -1 ) // fix opera bug 
        obj = document;
      

      var postload = function(){
        var js;
        var handler = function() {
          removeEvent(obj, 'load', postload);
          removeEvent(js, 'load', handler);
          removeEvent(js, 'readystatechange', handler);
        }

        js = document.createElement('script');
        js.setAttribute('language', 'javascript');
        js.setAttribute('type', 'text/javascript');
        
        addEvent( js, 'load', handler );
        // IE only script load checking
        addEvent( js, 'readystatechange', handler );

        var src;
        var tags = document.getElementsByTagName("SCRIPT");
        var pos;
        for ( var i = 0; i < tags.length; i++ ) {
          var tmp = tags[i].src;
          var pos_end = tmp.indexOf('?');
          if (pos_end==-1) pos_end = tmp.length-1;
          pos = tmp.substr(0,pos_end).lastIndexOf('/');
          tmp = tmp.substr(pos, pos_end);
          if (regex.test(tmp)) {
            src = tags[i].src; 
            break;
          }
        }
        // post: pos is position of /richfx 

        src = src.substr(0,pos+1)+fullScript+src.substr(pos+scriptName.length+1);
        if (/https?:\/\//i.test(src)) { // fixed urls only
          var staging = /rfx_staging/i.test(document.location.search);
          var dontcache = staging || /rfx_dontcache/i.test(document.location.search);
          if (dontcache) {
            src = src.replace(".edgesuite.net","");
            src = src.replace(/^https:\/\/secure-/i, "https://"); // https://secure-ACCOUNT.
          }
          if (staging) {
            var pos = src.indexOf(".");
            src = src.substr(0,pos)+".preview"+src.substr(pos);
          }
        }
          
        js.setAttribute('src', src);

        var html_doc = document.getElementsByTagName('head').item(0);
        html_doc.appendChild(js);
    }
    addEvent(obj, 'load', postload);
  })();
}