function ampliar(arq,width,height)
{
	var x; var y;
	x = (screen.width-width)/2; 
	y = (screen.height-height)/2;

	cotatos=window.open(arq,'Janela','top='+ y +',left='+ x +',toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=no,copyhistory=no,maximized=no,width='+width+',height='+height+'')
}
function text(arq,width,height)
{
	var x; var y;
	x = (screen.width-width)/2; 
	y = (screen.height-height)/2;

	cotatos=window.open(arq,'Janela','top='+ y +',left='+ x +',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,maximized=no,width='+width+',height='+height+'')
}