function showGroepenSub()
{
	var subMenuDiv = document.getElementById("submenuGroepen");
	subMenuDiv.style.visibility = "visible";
}
function hideGroepenSub()
{
	var subMenuDiv = document.getElementById("submenuGroepen");
	subMenuDiv.style.visibility = "hidden";
}

function showBedrijfSub()
{
	var subMenuDiv = document.getElementById("submenuBedrijfsinfo");
	subMenuDiv.style.visibility = "visible";
}
function hideBedrijfSub()
{
	var subMenuDiv = document.getElementById("submenuBedrijfsinfo");
	subMenuDiv.style.visibility = "hidden";
}
function showAanbodSub()
{
	var subMenuDiv = document.getElementById("submenuAanbod");
	subMenuDiv.style.visibility = "visible";
}
function hideAanbodSub()
{
	var subMenuDiv = document.getElementById("submenuAanbod");
	subMenuDiv.style.visibility = "hidden";
}
function visitTravel(id)
{
	//alert('t');
	document.location.href='/kalender/reis/' + id + '.html';
}
var checked = false;
function checkboxTermsChange()
{
	checked = !checked;
	var button = document.getElementById("btnOrder");
	var paymentType = this.getPaymentType();
	//alert(paymentType);
	if(button != null && (paymentType == "ideal" || !paymentType))
	{
		button.disabled = !checked;
	}
	button = null;
	button = document.getElementById("btnOrderFactuur");
	if(button != null && paymentType == "factuur")
	{
		button.disabled = !checked;
	}
}
function getPaymentType()
{
	for (var i=0; i < document.orderForm.paymentMethod.length; i++)
   	{
   		if (document.orderForm.paymentMethod[i].checked)
      	{
      		return document.orderForm.paymentMethod[i].value;
      	}
   	}
}
function resetButtons()
{
	checked = false;
	button = document.getElementById("btnOrderFactuur");
	button.disabled = true;
	var button = document.getElementById("btnOrder");
	button.disabled = true;
	var checkbox = document.getElementById("cbTerms");
	checkbox.checked = false;
}