var compatible = (document.getElementById && document.getElementsByTagName && document.childNodes && document.createElement);

/* collapsable list */

var openLists = [], oIcount = 0;
function compactMenu(oID,oAutoCol,oPlMn,oMinimalLink) {
	if(!compatible) { return; }
	var baseElement = document.getElementById( oID ); if( !baseElement ) { return; }
	compactChildren( baseElement, 0, oID, oAutoCol, oPlMn, baseElement.tagName.toUpperCase(), oMinimalLink && oPlMn );
	baseElement.style.display = 'block';
}
function compactChildren( oOb, oLev, oBsID, oCol, oPM, oT, oML ) {
	if( !oLev ) { oBsID = escape(oBsID); if( oCol ) { openLists[oBsID] = []; } }
	for( var x = 0, y = oOb.childNodes; x < y.length; x++ ) { if( y[x].tagName ) {
		//for each immediate LI child
		var theNextUL = y[x].getElementsByTagName( oT )[0];
		if( theNextUL ) {
			//collapse the first UL/OL child
			theNextUL.style.display = 'none';
			//create a link for expanding/collapsing
			var newLink = document.createElement('A');
			newLink.className='pseudolink';
			newLink.setAttribute('href', '#');
			newLink.onclick = new Function( 'clickSmack(this,' + oLev + ',\'' + oBsID + '\',' + oCol + ',\'' + escape(oT) + '\');return false;' );
			//wrap everything upto the child U/OL in the link
			if( oML ) { var theHTML = ''; } else {
				var theT = y[x].innerHTML.toUpperCase().indexOf('<'+oT);
				var theA = y[x].innerHTML.toUpperCase().indexOf('<A');
				var theHTML = y[x].innerHTML.substr(0, ( theA + 1 && theA < theT ) ? theA : theT );
				while( !y[x].childNodes[0].tagName || ( y[x].childNodes[0].tagName.toUpperCase() != oT && y[x].childNodes[0].tagName.toUpperCase() != 'A' ) ) {
					y[x].removeChild( y[x].childNodes[0] ); }
			}
			y[x].insertBefore(newLink,y[x].childNodes[0]);
			y[x].childNodes[0].innerHTML = oPM + theHTML.replace(/^\s*|\s*$/g,'');
			theNextUL.MWJuniqueID = oIcount++;
			compactChildren( theNextUL, oLev + 1, oBsID, oCol, oPM, oT, oML );
} } } }
function clickSmack( oThisOb, oLevel, oBsID, oCol, oT ) {
	if( oThisOb.blur ) { oThisOb.blur(); }
	oThisOb = oThisOb.parentNode.getElementsByTagName( unescape(oT) )[0];
	if( oCol ) {
		for( var x = openLists[oBsID].length - 1; x >= oLevel; x-=1 ) { if( openLists[oBsID][x] ) {
			openLists[oBsID][x].style.display = 'none'; if( oLevel != x ) { openLists[oBsID][x] = null; }
		} }
		if( oThisOb == openLists[oBsID][oLevel] ) { openLists[oBsID][oLevel] = null; }
		else { oThisOb.style.display = 'block'; openLists[oBsID][oLevel] = oThisOb; }
	} else { oThisOb.style.display = ( oThisOb.style.display == 'block' ) ? 'none' : 'block'; }
}
function stateToFromStr(oID,oFStr) {
	if( !document.getElementsByTagName || !document.childNodes || !document.createElement ) { return ''; }
	var baseElement = document.getElementById( oID ); if( !baseElement ) { return ''; }
	if( !oFStr && typeof(oFStr) != 'undefined' ) { return ''; } if( oFStr ) { oFStr = oFStr.split(':'); }
	for( var oStr = '', l = baseElement.getElementsByTagName(baseElement.tagName), x = 0; l[x]; x++ ) {
		if( oFStr && MWJisInTheArray( l[x].MWJuniqueID, oFStr ) && l[x].style.display == 'none' ) { l[x].parentNode.getElementsByTagName('a')[0].onclick(); }
		else if( l[x].style.display != 'none' ) { oStr += (oStr?':':'') + l[x].MWJuniqueID; }
	}
	return oStr;
}
function MWJisInTheArray(oNeed,oHay) { for( var i = 0; i < oHay.length; i++ ) { if( oNeed == oHay[i] ) { return true; } } return false; }
function selfLink(oRootElement,oClass,oExpand) {
	if(!document.getElementsByTagName||!document.childNodes) { return; }
	oRootElement = document.getElementById(oRootElement);
	for( var x = 0, y = oRootElement.getElementsByTagName('a'); y[x]; x++ ) {
		if (getRealAddress(location).indexOf(y[x].getAttribute('href') && !y[x].href.match(/#$/) && getRealAddress(y[x])) != -1 )
		{
			y[x].className = (y[x].className?(y[x].className+' '):'') + oClass;
			if( oExpand ) {
				oExpand = false;
				for( var oEl = y[x].parentNode, ulStr = ''; oEl != oRootElement && oEl != document.body; oEl = oEl.parentNode ) {
					if( oEl.tagName && oEl.tagName == oRootElement.tagName ) { ulStr = oEl.MWJuniqueID + (ulStr?(':'+ulStr):''); } }
				stateToFromStr(oRootElement.id,ulStr);
} } }

}
function getRealAddress(oOb) 
	{ 
		
		return oOb.protocol + ( ( oOb.protocol.indexOf( ':' ) + 1 ) ? '' : ':' ) + oOb.hostname + ( ( typeof(oOb.pathname) == typeof(' ') && oOb.pathname.indexOf('/') != 0 ) ? '/' : '' ) + oOb.pathname + oOb.search; 
	}

/* end collapsable list */

function linkHome(id)
{
	if (!compatible) return;
	if (document.getElementById(id) && document.getElementById('home'))
	{
		document.getElementById(id).onclick = function()
		{
			window.location = document.getElementById('home').href;
		}
	}
}

function replaceImg(src)
{
	if (!compatible) return;
	newSrc = src.replace(/_thumb/,''); 
	if (document.getElementById('replace'))
	{
		originalSource = document.getElementById('replace').src;
		document.getElementById('replace').src = newSrc;
	}
}

var W3CDOM = (document.getElementsByTagName && document.createElement);

function echeck(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1) return false;
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) return false;
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) return false;
	if (str.indexOf(at,(lat+1))!=-1) return false;
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) return false;
	if (str.indexOf(dot,(lat+2))==-1) return false;
	if (str.indexOf(" ")!=-1) return false;
	return true					
}

function validate()
{
	validForm = true;
	errorstring = '';
	var x = document.forms[0].elements;
	for (var i=0;i<x.length;i++)
	{
		if (!x[i].value)
		{
			if (x[i].className == 'required')
			{
				writeError(x[i],'» verplicht veld');
				validForm = false;
			}
		}
	}
	if (!echeck(x['email'].value))
	{
		writeError(x['email'],'» ongeldig e-mailadres');
		validForm = false;
	}
	if (!W3CDOM)
		alert(errorstring);
	if (firstError)
		firstError.focus();
	return validForm;
}

function writeError(obj,message)
{
	if (obj.hasError) return;
	if (W3CDOM)
	{
		obj.className += ' error';
		obj.onchange = removeError;
		var sp = document.createElement('span');
		sp.className = 'error';
		sp.appendChild(document.createTextNode(message));
		obj.parentNode.appendChild(sp);
		obj.hasError = sp;
	}
	else
	{
		errorstring += obj.name + ': ' + message + '\n';
		obj.hasError = true;
	}
	if (validForm)
	{
		firstError = obj;
	}
}

function removeError()
{
	this.className = this.className.substring(0,this.className.lastIndexOf(' '));
	this.parentNode.removeChild(this.hasError);
	this.hasError = null;
	this.onchange = null;
}