function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

// Função para troca de imagens (botões)
function t(i) {
  if (document.images) {
	x = i.split("-");
	if(x[2] == 'g') {
		document[x[0]].src = "img/" + x[0] + x[1] + ".gif";
	} else {
		document[x[0]].src = "img/" + x[0] + x[1] + ".jpg";
	}
  }
}