$(document).ready(function(){
	//placeholder
	$('input[jplaceholder], textarea[jplaceholder]').each(function(){
		var $elem = $(this);
		var textInic = $elem.attr('jplaceholder');
		
		$elem.focus(function(){
			if($elem.val()==textInic){
				$elem.addClass('ativo').val('');
			}
		}).blur(function(){
			if($elem.val()==''){
				$elem.removeClass('ativo').val(textInic);
			}
		});
		
		$elem.trigger('blur');
		
	});
});