// switch class
function switchClass(id,newClass)
{
	var inp = document.getElementById (id);
	inp.className = newClass; 
}

// Toggle DIV layer visibility. Id word meegegeven van de DIV layer.
function toggleVisibility(id)
{
	if (document.getElementById(id).style.visibility == "hidden")
	{
		document.getElementById(id).style.visibility = "visible";
	}
	else
	{
		document.getElementById(id).style.visibility = "hidden";
	}
}