function submitLogin (form){
	if ((form.email.value == "") || (form.password.value == "")){
		alert ("Para entrar debes introducir el login y el password");
	}else{
		form.submit ();
	}
}
function showSearch (){
	// Crida ajax per cridar al buscador.

	var myAjax = new Ajax.Updater(
				'search_desplegable',
				'/templates/buscador/float_extended_search.php');
	Effect.BlindDown('search_desplegable');
	return false;
}

function loadSearchByType (type){
	var myAjax = new Ajax.Updater(
				'extended_search',
				'/modules/buscador/show_search_by_type.php',{
					method: 'get',
					parameters: 'type='+type
				});
}
function agregar() {
	if ((navigator.appName=="Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=4)) {
		window.external.AddFavorite('http://www.programacionphp.net','- Recursos de PHP para programadores');
	}else {
		if(navigator.appName == "Netscape")
		alert (" Presiona Crtl+D para agregar esta web a tus Favoritos ");
	}
}