function Janela(e, w, h, p, nome) {
	try {
				
		param = "";
		if (p != null)
			param = ", " + p;

		centrox = (screen.width / 2) - (w / 2);
		centroy = (screen.height / 2) - (h / 2);

		if (navigator.appName.indexOf("Opera") != -1) {
			test = (screen.height - (screen.height * 0.25));
			centroy = (test / 2) - (h / 2);
		}
		if (navigator.appName.indexOf("Explorer") != -1) {
			w += 20;
		}

		
		window.open(e.href, nome, "left=" + centrox + ", top=" + centroy + ", width=" + w + ", height=" + h + "" + param);
		

		if (window.event)
			event.returnValue = false;
	}
	catch(e) {
		if (window.event)
			event.returnValue = true;
		
	}
	return false;
}