function pegaElemento(id) {
	return document.getElementById(id);
}

function getParametros(obj) {
	try {
	var nome = document.getElementById("nome").value;
	document.getElementById("divBotoes").style.visibility = "hidden";
	var poststr = "nome=" + encodeURI( nome ) +
				"&email=" + encodeURI( document.getElementById("email").value ) +
				"&titulo=" + encodeURI( document.getElementById("titulo").value ) +
				"&comentario=" + encodeURI( document.getElementById("comentario").value );
	chamaAjaxPost ('contato.php', 'divMsgEmail', poststr)              
	} catch(e){}
}
function retornar() {
	document.getElementById("divBotoes").style.visibility = "visible";
	document.getElementById("divMsgEmail").innerHTML = "";
}

function mudaClasse(id, valor) {
	atributo = isIE?"className":"class";
	insAtributo(id, atributo, valor);
}