function show(element,obj)
{
	var x = document.getElementById(element);
	x.style.visibility = 'visible';
	setElement(obj,element);			
}

function hide(element,obj)
{
	var x = document.getElementById(element);
	x.style.visibility = 'hidden';
}

function keepshowing(element,obj)
{
	var x = document.getElementById(element);
	x.style.visibility = 'visible';			
}


			
function setElement(obj,element)
{
	var coors = findPos(obj);
	
	if(navigator.userAgent.indexOf("Firefox")!=-1)
		coors[1] += 11;
	else
		coors[1] += 26;	
	coors[0] += -5;
	var x = document.getElementById(element);
	x.style.top = coors[1] + 'px';
	x.style.left = coors[0] + 'px';
}

function findPos(obj)
{
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}


function showCatNav(element, cur)
{
	var a = document.getElementById('subnavalgemeen');
	var b = document.getElementById('subnavbasis');
	var z = document.getElementById('subnavzwemmen');
	var w = document.getElementById('subnavwaterpolo');
	var y = document.getElementById('menu'+cur);
	var x = document.getElementById('subnav'+element);
	if (element == 'basis') {
		y.style.background = '#006699';
	}
	if (element == 'zwemmen') {
		y.style.background = '#259CD3';
	}
	if (element == 'waterpolo') {
		y.style.background = '#F5D300';
	}
	a.style.display = 'none';
	b.style.display = 'none';
	z.style.display = 'none';
	w.style.display = 'none';
	x.style.display = 'block';
	
	
	sIFR.replace(myriadpro, {
	  selector: '#subnavalgemeen div, #subnavbasis div, #subnavzwemmen div, #subnavwaterpolo div',
	  ratios: [7,1.32,8,1.31,12,1.27,16,1.22,22,1.2,28,1.19,30,1.17,31,1.18,33,1.17,38,1.16,39,1.17,54,1.16,81,1.15,84,1.14,86,1.15,87,1.14,88,1.15,91,1.14,92,1.15,1.14],
	  css: [ '.sIFR-root { 	font-size:14; color:white; text-transform:uppercase; }','a { text-decoration: none; }' ,'a:link { color: #FFFFFF; }' ,'a:hover { color: #FFFFFF;}' ],
	  wmode: 'transparent', 
	  fitExcatly: true,
	  selectable: false,
	  forceWidth: true,
	  tuneHeight: 5
	});

}