function XhrConnect(){
var xmlhttp;
if (window.XMLHttpRequest)
  {
  return xmlhttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {
  return xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
else
  {
  alert("Desteklenmiyor!!");
  }
}
function DegerDuzenle(sName,sValue)
{
	var sParam = encodeURIComponent(sName);
	sParam += "=";
	sParam += encodeURIComponent(sValue);
	return sParam;
}
function GovdeyiHazirla(Form)
{
var aParams = new Array();
var oForm = Form;
for (var i = 0; i < oForm.elements.length;i++)
    {
    var oField = oForm.elements[i];
    switch (oField.type)
        {
        case "button":
        case "submit":
        case "reset":
        break;
        case "checkbox":
        case "radio":
        if (!oField.checked) {
            break;
        }
        case "text":
        case "hidden":
        case "password":
        aParams.push(DegerDuzenle(oField.name,oField.value));
        break;
        default:
        	switch (oField.tagName.toLowerCase()){
            case "select":
            aParams.push(DegerDuzenle(oField.name,oField.options[oField.selectedIndex].value));
            break;
            default:
            aParams.push(DegerDuzenle(oField.name,oField.value));
        	}
    	}
	}
	return aParams.join("&");
}
function SendPost()
{
var oForm = document.forms[0];
var sBody = GovdeyiHazirla(oForm);
var oXHR = XhrConnect();
var result = "";
oXHR.open("post","loginajax.php",false);
oXHR.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=UTF-8");
oXHR.setRequestHeader("Content-length", sBody.length);
oXHR.setRequestHeader("Connection", "closed");
oXHR.send(sBody);
oXHR.onreadystatechange = function()
{
	if(oXHR.readyState == 4)
  		{
		
		if (oXHR.status == 200)
		    {    
			
			result = oXHR.responseText;  
			}
		    else
		    {
		    result = "bir hata meydana geldi : " + oXHR.responseText;
		    }
	  } else
	  {
	  	alert(1);
	  }		
 };
return result = oXHR.responseText; 
}
function Login()
{
var deger = SendPost();
if (deger == 0)
	{
	document.getElementById("sonuc").innerHTML = "Giris Yapamadiniz.";	
	} else if(deger == 1)
	{
	var giris = document.getElementById("giris");
 giris.parentNode.removeChild(giris);
	document.getElementById("sonuc").innerHTML = "Basariyla giris yaptiniz.";	
	} 	

}