/*main login function*/
function login() {
	
	//if both fields set
	if (empty('username') || empty('password')) {
		setMessage("Incomplete Fields");
		return false;
	}
	
	username = $('input#username').val();
	password = $('input#password').val();
	
	//set to verifying
	setLoginContent("<img src=\"images/load.gif\"/> Verifying Login");
	
	//post data
	postLogin(username, password);

	return false;
};

/*sets content div*/
function setContent(message) {
	document.getElementById('content').innerHTML = message;
};

function setLoginContent(message) {
	document.getElementById('login').innerHTML = message;
};

function setMessage(message) {
	document.getElementById('message').innerHTML = message;
};

/*checks if element is empty*/
function empty(ele) {
	if (document.getElementById(ele).value.length == 0) { 
		return true;
	}
	return false;	
}

/*posts login data to server*/
function postLogin(username, password) {
 var dataString = 'username='+ username + '&password=' + password;
  $.ajax({
    type: "POST",
    url: "?type=login",
    data: dataString,
    success: function(data) {
      $('#content').html('')
      .append(data)
      .hide()
      .fadeIn(1500);
    }
  });
  return false;
  
}

function loadPage() {
	//TODO
}