// Genel XMLHTTP İşlemi
   
   var http_request = false;
   
   function istekGonder(tip, url, parameters, div) {
      http_request = false;
      if (window.XMLHttpRequest) {
         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('XMLHTTP oluşturulamadı.');
         return false;
      }
	  
      http_request.onreadystatechange = function() {
		
			mesajYaz(div);
		  
	  }
	  
	  switch(tip) {
      case 'GET':
        http_request.open('GET',url + parameters,true);
        http_request.setRequestHeader('If-Modified-Since','Sat, 1 Jan 2000 00:00:00 GMT');
        http_request.setRequestHeader('Connection','close');
        http_request.send(null);
        break;
      case 'POST':
        http_request.open('POST',url,true);
        http_request.setRequestHeader('If-Modified-Since','Sat, 1 Jan 2000 00:00:00 GMT');
        http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=UTF-8');
        http_request.setRequestHeader('Content-length',parameters.length);
        http_request.setRequestHeader('Connection','close');
        http_request.send(parameters);
        break;
      }
   }
   
   // Veri Döndürme Fonksiyonu

   function mesajYaz(div) {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            result = http_request.responseText;
			document.getElementById(div).style.visibility = 'visible';
            document.getElementById(div).innerHTML = result;
         } else {
            alert('Bilinmeyen bir hata oluştu.');
         }
      }
   }
   
   // Form Gönderme Fonksiyonu
   
   function get(obj, url, div) {
      var getstr = "";
      for (i=0; i<obj.elements.length; i++) {
		  	if(obj.elements[i].type == "checkbox") {
				if(obj.elements[i].checked) {
					getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
				}
			} else {
				getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
			}
      }
      istekGonder('POST', url, getstr, div);
   }