function popup(URL) {
	var width = 650;
	var height = 350;
	var left = 99;
	var top = 99;
	window.open(URL,'janela', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=yes, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
}