function iguncelle(sayfa,neresi){
document.getElementById(neresi).innerHTML = "<table border='0' width='100%' cellspacing='0' cellpadding='0' height='100%'><tr><td align='center'><img src='images/loadings.gif'></td></tr></table>";
     xmlhttp.open('GET', sayfa, true);
     xmlhttp.onreadystatechange = function (){
       if( xmlhttp.readyState == 4 ){
         var icerik = xmlhttp.responseText;
           document.getElementById(neresi).innerHTML = xmlhttp.responseText;
       }
     }

     xmlhttp.send(null);

}



// XML HTTP objemizi olusturalim

   // Internet Explorer ise (5.0+)
   try {

     xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");  // yeni versiyon xmlhttp

   } catch (e) {

      try {

        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");  // eski versiyon xmlhttp

      } catch (e) {

        xmlhttp = false;

      }

   }

   // Mozilla veya Safari ise
   if ( !xmlhttp && typeof XMLHttpRequest != 'undefined' ) {

     try{

        xmlhttp = new XMLHttpRequest();

     }catch(e) {

        xmlhttp = false;

     }

   }


   // Diger

   if ( !xmlhttp && window.createRequest ) {

     try{

        xmlhttp = window.createRequest();

     }catch(e) {

        xmlhttp = false;

     }

   }