Forum PHP Romania - Discutii despre PHP, MySQL, Javascript, AJAX, etc

[hipjim]

Salut. Am o problema mai mult decat ciudata.

Folosesc scriptul urmator pentru a apela asincron un script php care imi face un query pe o baza de date mysql si imi returneaza niste rezultate. Problema e ca, uneori (total aleator), in momenul in care am apelat functia de javascript care imi face request-ul...acesta se blocheaza, practic http_request.readyState ramane in starea 1 si aplicatia se blocheaza...fara sa primesc vreo eroare de javascript.

Gresesc undeva?

Scriptul pt apelul ajax:



Cod: function makePOSTRequest(url, parameters) {
   
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
     
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
    
   }

   function alertContents() {
         //alert("STATE: "+http_request.readyState)
      //alert(http_request.readyState);
      if (http_request.readyState==1){
         document.getElementById('searching').innerHTML = "<strong>Initializare</strong>";
      } else if (http_request.readyState==2){
         document.getElementById('searching').innerHTML = "<img src=\"images/loaders/connecting.gif\" /> <strong>Se incarca...</strong>";
      } else if (http_request.readyState==3){
         document.getElementById('searching').innerHTML = "<strong>Finalizare transfer</strong>";
      } else if (http_request.readyState==4){
         document.getElementById('searching').innerHTML = "<strong>Transfer incheiat</strong>";
      }
      
      
      if (http_request.readyState == 4 ) {
         if (http_request.status == 200) {
          
            //alert(http_request.responseText);
            result = http_request.responseText;
         document.getElementById('myspan').innerHTML = result;     

         } else {
      
            
            
            if (document.getElementById("continue")!=null){
                document.getElementById("continue").innerHTML = '<a href="#" onclick="continueTest(document.getElementById(\'myform\'))"><img src="interface/buttons/<?=$_SESSION['shortLang']?>/continue.gif" width="95" height="20"  /></a>'
                   alert('There was a problem with the request.(Code: ' + http_request.status + ')');
             } else {
                alert('There was a problem with the request.(Code: ' + http_request.status + '). Please retry.');
             }
         
         }
      }
   }

[PHPRomania Bot]