var request = null;

 /*// CREATE REQUEST ========================================================================*/ 
   function createRequest() {
     try {
       request = new XMLHttpRequest();
     } catch (trymicrosoft) {
       try {
         request = new ActiveXObject("Msxml2.XMLHTTP");
       } catch (othermicrosoft) {
         try {
           request = new ActiveXObject("Microsoft.XMLHTTP");
         } catch (failed) {
           request = null;
         }
       }
     }

     if (request == null)
       alert("Error creating request object!");
   }
   
   
/*// REGISTER RATING ================================================================*/ 
 	function registerFeedback(id){
 		var comment = document.getElementById('comment').value;
  		createRequest();
  		var url = "/ajax-registerFeedback.php";
  		request.open("POST", url, true);
    	request.onreadystatechange = registerFeedbackResponse;
    	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    	request.send("id=" + escape(id)
    				+ "&comments=" + escape(comment));
  	}
  	
  	function registerFeedbackResponse(){
  		
  	}