var url = 'relay.php';
var mainsite = 'explorador.php';
/*var ajax = new Ajax.Request(url, {onSuccess: userLogin_handler, method: 'post', parameters: 'relay=checkLogin'});*/
var lang=0;

function userLogin(idioma){	
   lang=idioma;
   $.post("relay.php",
   		{ relay: "userLogin", username: $('#username').val(), password: $('#password').val()},
 	    userLogin_handler 
	 );
}
		
function userLogin_handler(json_data) {      
	//var json_data = response.responseText;
	eval("var jsonObject = ("+json_data+")");	
	var status = jsonObject.bindings[0];
	//alert(json_data);
	//return false; 
	if(status.login == 'true') {
		document.location = mainsite+"?lang="+lang;
	} else if($('password').value != '') {		
		$('#warning').show();		
	}
}

function submitenter(myfield,e,idioma) {
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;

	if (keycode == 13) {
	   userLogin(idioma);
	   return false;
  	} else return true;
}