$(document).ready(function(){
	$("ul#ul_menu").localScroll();
	$("#bookEmail").focus(function(){
		if($(this).val() == "Introduzca su email aqui...") {
			$(this).val('');
		}
	});
	$("#bookEmail").blur(function(){
		if($(this).val() == '') {
			$(this).val('Introduzca su email aqui...');
		}
	});
	
	$("#a_download").click(function(){
		var emailpat = /^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-]+)+$/;
		var usermail = $('#bookEmail').val();
		if( !emailpat.test( usermail ) ) {
			alert( 'Email no es valido');
		}
		$("#frmDownload").submit();
	});
});