var http_request = false;

function makePOSTRequest(url, parameters) 
{
	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('POST', url, true);
	  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	  http_request.setRequestHeader("Content-length", parameters.length);
	  http_request.setRequestHeader("Connection", "close");
	  http_request.send(parameters);
}

function alertContents() 
{
	if (http_request.readyState == 4) 
	{
 		if (http_request.status == 200) 
		{
			//alert(http_request.responseText);
			result = http_request.responseText;
			document.getElementById('comentariu').innerHTML = result;
		} 
		else 
		{
			alert('There was a problem with the request.');
 		}
  	}
}

function validateEmail(elementValue){      
   var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
   return emailPattern.test(elementValue); 
 }

   
function get() 
{
	var nume = document.getElementById("nume").value;
	var pag = document.getElementById("pag").value;
	var email = document.getElementById("email").value;
	var mesaj = document.getElementById("mesaj").value;
	
	if(nume == "")
	{
		alert("Va rugam introduceti numele si prenumele dvs.");	
		return false;
	}
	
	else if(pag == "")
	{
		alert("Va rugam introduceti pagina din coran in care ati gasit greseli");	
		return false;
	}
	
	else if(email == "")
	{
		alert("Va rugam introduceti email-ul dvs.");	
		return false;
	}	
	
	else if(validateEmail(email) == false)
	{
		alert("Va rugam introduceti o adresa de email valida");	
		return false;
	}
	
	else if(mesaj == "")
	{
		alert("Va rugam introduceti mesajul dvs.");	
		return false;
	}
	
	var poststr = "nume=" + encodeURI(nume) + "&pag=" + encodeURI(pag) + "&email=" + encodeURI(email) + "&mesaj=" + encodeURI(mesaj);
		  
	makePOSTRequest('send_coran.php', poststr);
	
}