// JavaScript Document
function muda_calendario(valor)
{

	var mes = document.formcalendario.mesactual.value;
	var ano = document.formcalendario.anoactual.value;	

	if (valor == 1) // recuar
	{
		if (mes == 1)
		{
			mes = 12;
			ano = parseInt(ano) - 1;
		}
		else mes = parseInt(mes) - 1;
	}
	else if (valor == 2) // avancar
	{
		if (mes == 12)
		{
			mes = 1;
			ano = parseInt(ano) + 1;
		}
		else mes = parseInt(mes) + 1;		
	}
	
	pesquisa_calendario('calendario.php?mes='+mes+'&ano='+ano, 'x', '','');
}
function NewWindow(mypage,myname,w,h,scroll){
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/4 : 0;
	settings =
	'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
	win = window.open(mypage,myname,settings)
}