function abre_janela(pagina,largura,altura,scrolls)
{
	if(!scrolls)
		scrolls = 'no';
	window.open(pagina,'','toolbar=no,location=no,top=200,left=200,directories=no,status=no,menubar=no,scrollbars='+scrolls+',Resizable=no,copyhistory=no,width=' + largura + ',height=' + altura)
}
function swap(imgx,srcx){
	try{
		document.getElementsByName(imgx)[0].src = srcx;
	}catch(e){}
}

function dia_mes(e,campo) {
	
	if(e.which == 8){
		campo.value = campo.value.substr(0,campo.value.length-1);
		return false
	}
	if(campo.value.length < 5 ){
		if (e.which< 48 || e.which > 57) {
				return false		
		}
		else{
			
			if(campo.value.length == 2 ){
				campo.value = campo.value+'/'
				return true
			}
		}
	}
	else
	{
		return false;
	}
}


function dia_mes_ano(e,campo) {
	
	if(e.which == 8){
		campo.value = campo.value.substr(0,campo.value.length-1);
		return false
	}
	if(campo.value.length < 10 ){
		if (e.which< 48 || e.which > 57) {
				return false		
		}
		else{
			
			if(campo.value.length == 2 || campo.value.length == 5){
				campo.value = campo.value+'/'
				return true
			}
		}
	}
	else
	{
		return false;
	}
}

function bissexto(ano){
	
	if (ano % 100 == 0){
		if (ano % 400 == 0) return true;
	}else{
		if ((ano % 4) == 0)  return true;
	}
	
	return false;
}

function validar(mes,dia,ano){
	
	if (mes>12 || mes<1) return false;
	if ((mes == 1 || mes == 3 || mes == 5 || mes == 7 || mes == 8 || mes == 10 || mes == 12) && (dia > 31 || dia < 1)) return false;
	if ((mes == 4 || mes == 6 || mes == 9 || mes == 11) && (dia > 30 || dia < 1)) return false;

	if (mes == 2){
		if (dia < 1)return false;
		if (bissexto(ano)){
			if (dia > 29) return false;
		}else{
			if (dia > 28) return false;
	   }
	}
	return true;
}

function enviar(){
	
	var valor = document.getElementsByName('mes_dia')[0].value;
	if(valor.length == 5)
	{
		var dia = valor.substr(0,2);
		var mes = valor.substr(3,5);
		if(validar(mes,dia,variavelAno))
		{
			document.location="/site/?n_link="+retornoJs['n_link']+"&mes_dia="+mes+"-"+dia;
		}
		else{
			alert('data incorreta')
			document.getElementsByName('mes_dia')[0].value = '';
		}
	}
	return false;
}


function enviar2(){
	var valor = document.getElementsByName('ano_mes_dia')[0].value;
	if(valor.length == 10)
	{
		
		var dia = valor.substr(0,2);
		var mes = valor.substr(3,2);
		var ano = valor.substr(6,4);
		
		
		if(validar(mes,dia,ano))
		{
			document.location="/site/?n_link="+retornoJs['n_link']+"&ano_mes_dia="+ano+"-"+mes+"-"+dia;
		}
		else{
			alert('data incorreta')
			document.getElementsByName('ano_mes_dia')[0].value = '';
		}
	}
	return false;
}

function playRadio(){
parent.window.frames[0].document.WMPlay.play();
document.getElementsByName('play')[0].src='/img/webradio_play_on.gif';
document.getElementsByName('stop')[0].src='/img/webradio_stop_off.gif';


}
function stopRadio(){
parent.window.frames[0].document.WMPlay.stop();
document.getElementsByName('play')[0].src='/img/webradio_play_off.gif';
document.getElementsByName('stop')[0].src='/img/webradio_stop_on.gif';
}