// JavaScript Document

function send_mail_choice()
{
  var send;
  if (document.getElementById('email_all').checked)
    send = document.getElementById('email_all').value;
  else if (document.getElementById('email_my_class').checked)
    send = document.getElementById('email_my_class').value;
  else if (document.getElementById('email_class').checked)
    send = document.getElementById('email_class').value;
  else if (document.getElementById('email_one').checked)
    send = document.getElementById('email_one').value;
  lang = document.getElementById('email_lang').value;
  user_id = document.getElementById('idu').value;            
    
  var url = "ajax/email_ajax.php?send="+send+"&lang="+lang+"&idu="+user_id;
  sendRequest(url);
}
var xmlHttp;

function createXMLHttpRequest()
{
	try 
  { 
    return new ActiveXObject("Msxml2.XMLHTTP"); 
  } 
  catch (e) 
  {
    try 
    { 
      return new ActiveXObject("Microsoft.XMLHTTP"); 
    } 
    catch (e) 
    {
      try 
      { 
        return new XMLHttpRequest(); 
      } 
      catch(e) 
      {
      	alert("Your browser does not support AJAX!");
	      return null;
      }
    }
  }
}

function stateChanged() 
{ 
  if (xmlHttp.readyState==4)
  { 
    document.getElementById('mail_to').innerHTML=xmlHttp.responseText;
  }
}

function sendRequest(url)
{
	xmlHttp = createXMLHttpRequest();

	if (xmlHttp)
	{
	  xmlHttp.onreadystatechange=stateChanged;
		xmlHttp.open("GET", url, true);
		xmlHttp.send("");
		//return xmlhttp.responseText;
	}
}