var updateDivId;

function updateDiv(txt) {

    if(updateDivId) {

        $(updateDivId).innerHTML = txt;

        updateDivId = "";

    }

}

function getPageText(div, chave) {

	updateDivId = div;

	var req = new Request({

		url: 'admin/TextoPaginaService.php',

		method: 'post',

		onSuccess: function(txt, xml) { updateDiv(txt); }

	});

	req.send("chave=" + chave);

}