// JavaScript Document

      var AJAX;
      
      function getXMLHttpRequestObject() {
        	var AJAX = null;
        	try {
        		AJAX = new XMLHttpRequest();
        	}
        	catch (e) {
        		try {
        			AJAX = new ActiveXObject("Msxml2.XMLHTTP");
        		}
        		catch (e) {
        			try {
        				AJAX = new ActiveXObject("Microsoft.XMLHTTP");
        			}
        			catch (e) {
        				AJAX = null;
        			}
        		}
        	}
        	return AJAX;
      }
           
      function AddNumber(){


             //Checking working AJAX object...
        	   if (AJAX != null && AJAX.readyState != 0 && AJAX.readyState != 4) {
        	     //Ha 0 vagy 4 az allapota, akkor az abort() fv. furcsa dolgokat tud muvelni.
        		   return;
        	   }
	      
      	    //Create a XMLHttpRequest object
      	    AJAX = getXMLHttpRequestObject();
      	    if (AJAX == null) {
      	     	return false;
      	    }  

      	    //Successfully created
      
             
      	    AJAX.open("POST", "addnumber.php");
            AJAX.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            
            AJAX.onreadystatechange = pingHandler;
          
      	     var postData = "mail_number=" + document.getElementById("email_number").value;
      	     AJAX.send(postData);
              		    
              		    
        }
        function pingHandler() {
            
            if (AJAX.readyState == 4) {		
            		if (AJAX.status == 200) {
            		      
                    if ( AJAX.responseText.substring(0,5) == "error" ){
                     alert("Kérjük írja be telefonszámát, vagy e-mail címét!");     
                    }else{
                     alert("Adatait rögzítettük!");
                     document.getElementById("email_number").value = "";         
              		  }
        		    }
	         }
        }  

document.getElementById("submit-button").onclick=function(){
            
            AddNumber();
}

document.getElementById("email_number").onkeypress=function(event){
            
	    var key=event.keyCode || event.which;
	    if (key==13){
		AddNumber();
	    }        
}