// Abre janela options do select
function abreJanela(campo)
{
	var indice = campo.options.selectedIndex;

	if (indice>0)
	{
		document.location = campo.options[indice].value;
	}
}

// Abre janela popup no centro da tela
function popUp(url,w,h)
{
	esquerda	= (screen.width)		?	(screen.width-w)	/2	: 0;
	topo			= (screen.height)	?	(screen.height-h)	/2	: 0;

	config		= 'height='+h+', width='+w+', top='+topo+', left='+esquerda+', scrollbars=yes, resizable=no, status=no, toolbar=no, location=no, directories=no, menubar=no, '

	window.open(url,'',config);
}