function cfshow(id)
{
	if (id == 1)
	{
		document.getElementById('verberg1').style.display="inline";
		document.getElementById('verberg2').style.display="inline";
		document.getElementById('verberg3').style.display="inline";
		document.getElementById('verberg4').style.display="inline";
		document.getElementById('verberg5').style.display="inline";
		document.getElementById('verberg6').style.display="inline";
		document.getElementById('verberg7').style.display="inline";
		document.getElementById('verberg8').style.display="inline";
		document.getElementById('verberg9').style.display="inline";
		document.getElementById('verberg10').style.display="inline";
		document.getElementById('verberg11').style.display="inline";
		document.getElementById('verberg12').style.display="inline";						
	}	
}

function show(id)
{
	if (id == 1)
	{
		document.getElementById('koop').style.display="block";
		document.getElementById('nieuwbouw').style.display="none";
		document.getElementById('huur').style.display="none";
		document.getElementById('kavel').style.display="none";					
	}
	
	if (id == 2)
	{
		document.getElementById('koop').style.display="none";
		document.getElementById('nieuwbouw').style.display="block";
		document.getElementById('huur').style.display="none";
		document.getElementById('kavel').style.display="none";						
	}	
	
	if (id == 3)
	{
		document.getElementById('koop').style.display="none";
		document.getElementById('nieuwbouw').style.display="none";
		document.getElementById('huur').style.display="block";
		document.getElementById('kavel').style.display="none";						
	}
	
	if (id == 4)
	{
		document.getElementById('koop').style.display="none";
		document.getElementById('nieuwbouw').style.display="none";
		document.getElementById('huur').style.display="none";
		document.getElementById('kavel').style.display="block";			
	}
	
}

sfHover = function() {
	if (!document.getElementsByTagName) return false;
	var sfEls = document.getElementById("nav").getElementsByTagName("li");

	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);