formulario = {
		enviaForm : function(nomeForm){
	        var form = $(nomeForm);
	        var url  = "ajax.php";
	        var params = Form.serialize(form);
	        
	        new Ajax.Request(
	    	url, 
	    	{
	    		method: 'post', 
	    		parameters: params,
	    		asynchronous: false,
	    		onCreate : function(){
	    		$('conteudo').innerHTML = "Carregando..";
	    		},
	    		onComplete: function(resp,json) {
	    			$('conteudo').innerHTML = resp.responseText;
	    		}
	    	});
	    	return false;
		}
		
}