YAHOO.namespace("carregando");
		var painelCarregando = document.getElementById("painelCarregando");
        	painelCarregando.innerHTML = "";
				if (!YAHOO.carregando.wait) {
				YAHOO.carregando.wait = 
						new YAHOO.widget.Panel("wait",  
								{ width: "300px",
								  height: "100px", 
								  fixedcenter: true, 
								  close: false, 
								  draggable: false, 
								  zindex:4,
								  modal: true,
								  visible: false
								} 
							);
    		YAHOO.carregando.wait.setHeader("Processando");
            YAHOO.carregando.wait.setBody("<div align=\"center\"><b>Executando</b><br /> <img src=\"imagens/ajax-loader.gif\"/></div>");
            YAHOO.carregando.wait.render(document.body);
        }
			
		//ligar	
        //YAHOO.carregando.wait.show();
		//desligar
        //YAHOO.carregando.wait.hide();