function janela(theURL,Name,W,H)
{ //v2.0
	var win = (screen.width - W) / 2;
	var props = 'left='+win+',top=0,width='+W+',height='+H+',scrollbars=0,alwaysLowered=0,alwaysRaised=0,channelmode=0,dependent=0,directories=0,fullscreen=0,location=0,menubar=0,resizable=0,status=0,titlebar=1,toolbar=0';

	window.open(theURL,Name,props);
}

function janela2(url)
{
	var win = (screen.width - 650) / 2;
	var props = 'left='+win+', top=0, width=650, height=450, scrollbars=1, alwaysLowered=0, alwaysRaised=0, channelmode=0, dependent=0, directories=0, fullscreen=0, location=0, menubar=1, resizable=1, status=0, titlebar=1, toolbar=0';
	//var url = "boleto.php?" + id;

	window.open(url, 'Janela', props);
}