function showLoginForm() {
		$('#auth_loginForm').fadeIn();
	}
	
	var authFormValid = false;

	function checkAuthForm() {
		
		if ( true === authFormValid ) {
			return true;
		}
		
		$('#authErrors').fadeOut(10);
		
		var errors = 0;
		
		var login = $('#auth_loginField').val();
		var password = $('#auth_passwordField').val();
		
		data = {
			'login': login,
			'password': password
		}
		
		$.ajax({
			url: '/engine/components/system/auth/templates/.default/ajax/loginCheck.php',
			type: 'POST',
			data: data,
			success: function(result){
				
				result = JSON.parse(result);
				
				if ( 1 == result.errors ) {
					$('#authErrors').html(result.errorMessage);
					$('#authErrors').fadeIn();
				} else if (0 == result.errors) {
					authFormValid = true;
					$('#auth_authForm').submit();
				}
			}
		});
		
		return false;
		
	}