function showPopup(grupoDeJanelas, windowURL, width, height, scrollBar, resize) {
		if (scrollBar)
			width = width + 17;
		newWindow = window.open ( windowURL, 'janela' + grupoDeJanelas, 'width=' + width + ',height=' + height + ',toolbar=0,location=0,directories=0,status=0,menubar=0,scrollBars=' + scrollBar + ',resizable=' + resize);
		newWindow.focus();
	}