var req      = null;
   var console  = null;
   var COMPLETE = 4;
   var mytimer  = 0;

   function sendRequest( url, params, HttpMethod ) {
      if ( !HttpMethod ) HttpMethod = "GET";
      req = initXMLHTTPRequest();
      if ( req ) {
         req.onreadystatechange = onReadyState;
         req.open( HttpMethod, url, true );
         req.setRequestHeader( "Content-Type", "application/x-www-form-urlencoded" );
         req.send( params );
      }
   }

   function initXMLHTTPRequest() {
      var xRequest = null;
      if ( window.XMLHttpRequest ) {
         xRequest = new XMLHttpRequest();
      } else if ( window.ActiveXObject ) {
         xRequest = new ActiveXObject("Microsoft.XMLHTTP");
      }
      return xRequest;
   }

   function onReadyState() {
      var ready = req.readyState;
      var data = null;
      if ( ready == COMPLETE ) {
         data    = req.responseText;
         photoid = data;
         changeImage( data );
      }
   }