function login()
{
	$('loginform').submit();
}

function recommendus()
{

	var frm = $('recommendusform');

	if ( frm.nombre.value.empty() )
	{
		alert( 'El nombre es un campo obligatorio' );
		frm.nombre.focus();
		return false;
	}
	if ( frm.email.value.empty() )
	{
		alert( 'El email es un campo obligatorio' );
		frm.email.focus();
		return false;
	}

	if ( !checkEmail( frm.email.value ) )
	{
		alert( 'El email no parece válido' );
		frm.email.focus();
		return false;
	}

	return true;
}

function select_categories_change( o )
{
	var obj=$(o);
	if ( !obj.value.empty() ) { location = obj.value; }
}

function checkEmail( email )
{
	var retval = false;
	new Ajax.Request( cHTML_ROOT + 'backoffice/queries/checkemail.php',
	{
		method:'get',
		onException: function( req, excep ){ alert( excep ); },
		parameters: { email: escape(email) },
		onSuccess: function(transport) {
			retval = transport.responseText == '1';
		},
		asynchronous: false
	});
	return retval;
}