var timerID = null;
var timerOn = false;
var timecount = 500;
var what = null;
var newbrowser = true;
var check = false;

var layerRef;
var styleSwitch;

function init(){
	if(document.layers){
		layerRef="document.layers";
		styleSwitch="";
		visibleVar="show";
		screenSize = window.innerWidth;
		what ="ns4";
	}else if(document.all){
		layerRef="document.all";
		styleSwitch=".style";
		visibleVar="visible";
		screenSize = document.body.clientWidth + 18;
		what ="ie";
	}else if(document.getElementById){
		layerRef="document.getElementByID";
		styleSwitch=".style";
		visibleVar="visible";
		what="moz";
	}else{
		what="none";
		newbrowser = false;
	}

	check = true;
}

function showLayer(layerName){
	if(check){
		if (what =="none"){
			return;
		}else if (what == "moz"){
			document.getElementById(layerName).style.visibility="visible";
		}else{
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
		}
	}else{
		return;
	}
}

function hideLayer(layerName){
	if(check){
		if (what =="none"){
			return;
		}else if (what == "moz"){
			document.getElementById(layerName).style.visibility="hidden";
		}else{
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
		}
	}else{
		return;
	}
}

function hideAll(){
	hideLayer('MENU_BLOK1');
	hideLayer('MENU_BLOK2');
	hideLayer('MENU_BLOK3');
	hideLayer('MENU_BLOK4');
	hideLayer('MENU_BLOK5');
}

function startTime(){
	if(timerOn == false){
		timerID=setTimeout( "hideAll()" , timecount);
		timerOn = true;
	}
}

function stopTime() {
	if(timerOn){
		clearTimeout(timerID);
		timerID = null;
		timerOn = false;
	}
}

var controls = new Array();
var depth = 0;

function showItem(ItemNr){
	depth=(ItemNr.length/2)-1;
	controls[depth]=ItemNr;
	if(document.getElementById(ItemNr).style.display==''){
		document.getElementById(ItemNr).style.display='none';
	}else{
		document.getElementById(ItemNr).style.display='';
	}

}

function SubmitAanvraag(){
	if(document.form1.aNaam.value == "" || document.form1.aVoornaam.value == "" || document.form1.aStraat.value == "" || document.form1.aNummer.value == "" || document.form1.aPostcode.value == "" || document.form1.aWoonplaats.value == "" || document.form1.aTelefoon.value == "" || !checkMail(document.form1.aEmail.value,false)){
		alert("U moet minstens de eerste velden met een * volledig invullen zodat wij u kunnen contacteren.");
		return false;
	}
	return true;
}

function SubmitUser(){
	if(document.register.userFName.value == "" || document.register.userSName.value == "" || document.register.userStreet.value == "" || document.register.userHouseNr.value == "" || document.register.userPostalCode.value == "" || document.register.userCity.value == "" || document.register.userCountry.value == "" || document.register.userTelephone.value == "" || document.register.userPassword1.value == "" || document.register.userPassword1.value != document.register.userPassword2.value || !checkMail(document.register.userMail.value,false)){
		alert("U moet alle velden (uitgezonderd bedrijf & BTW) geldig invullen!");
		return false;
	}
	return true;
}