// JavaScript Document
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Geçersiz E-Posta Adresi")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Geçersiz E-Posta Adresi")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Geçersiz E-Posta Adresi")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Geçersiz E-Posta Adresi")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Geçersiz E-Posta Adresi")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Geçersiz E-Posta Adresi")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Geçersiz E-Posta Adresi")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var emailID=document.getElementById('eposta');
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Lütfen E-Posta Adresinizi Giriniz!")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return true
 }

   var http_request = false;
   function makeRequest(url, parameters) {
   if(ValidateForm()==true)
   {
	document.getElementById('loading1').style.display='inline';
	document.getElementById('Submit1').value='';
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            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('GET', url + '?eposta=' +document.getElementById(parameters).value, true);
      http_request.send(null);
	  document.getElementById('eposta').value='';
	 }
   }
	
	function kapat()
	{
		document.getElementById('loading1').style.display='none';
		document.getElementById('Submit1').value='Gönderildi';
		setTimeout("document.getElementById('Submit1').value='Gönder'",1000);
	}
   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
			setTimeout("kapat()",5000);
         } else {
            alert('İşlem Sırasında Bir Hata Oluştu!');
         }
      }
   }
   
   function get(obj,url) {
      var getstr = "?";
      for (i=0; i<obj.childNodes.length; i++) {
         if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
            if (obj.childNodes[i].type == "checkbox") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               } else {
                  getstr += obj.childNodes[i].name + "=&";
               }
            }
            if (obj.childNodes[i].type == "radio") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               }
            }
         }   
         if (obj.childNodes[i].tagName == "SELECT") {
            var sel = obj.childNodes[i];
            getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
         }
         
      }
      makeRequest(url, getstr);
   }