function checkZoekVeld() {

	var zoekWaarde=document.getElementById('zoekveld').value;
	
	if(zoekWaarde=='Klik hier om te zoeken..') {
		document.getElementById('zoekveld').value='';
	}
}
function checkZoekVeld2() {

	var zoekWaarde=document.getElementById('zoekveld').value;
	
	if(zoekWaarde=='') {
		document.getElementById('zoekveld').value='Klik hier om te zoeken..';
	}
}
function show_overlay(){

	document.getElementById('selectedLayer').style.visibility='visible';
	document.getElementById('selectedLayerClose').style.visibility='visible';
	document.getElementById('stappenPlan').src="stappenplan/stappenplan.php";
	setLayerClose();
}

function hide_overlay(){
	
	document.getElementById('selectedLayer').style.visibility='hidden';
	document.getElementById('selectedLayerClose').style.visibility='hidden';
}

function setLayerClose(){
	
	var obj = document.getElementById('rootTable2');
	var tableLeft = 0;
	var tableTop = 0;
	if (obj.offsetParent) {
		tableLeft = obj.offsetLeft;
		tableTop = obj.offsetTop;
		while (obj = obj.offsetParent) {
			tableLeft += obj.offsetLeft;
			tableTop += obj.offsetTop;
		}
	}
	document.getElementById('selectedLayerClose').style.left = tableLeft+720;
	document.getElementById('selectedLayerClose').style.top = tableTop+6;
}

function setMenu(){
	var obj = document.getElementById('rootTable');
	var tableLeft = 0;
	var tableTop = 0;
	if (obj.offsetParent) {
		tableLeft = obj.offsetLeft;
		tableTop = obj.offsetTop;
		while (obj = obj.offsetParent) {
			tableLeft += obj.offsetLeft;
			tableTop += obj.offsetTop;
		}
	}
	document.getElementById('layer1').style.left = tableLeft+40;
	document.getElementById('layer1').style.top = tableTop+0;
	document.getElementById('layer2').style.left = tableLeft+844;
	document.getElementById('layer2').style.top = tableTop+0;
	document.getElementById('subMenuErvaringen').style.left = tableLeft+468;
	document.getElementById('subMenuErvaringen').style.top = tableTop+173;
	document.getElementById('subMenuThemas').style.left = tableLeft+218;
	document.getElementById('subMenuThemas').style.top = tableTop+173;
}

function showMenu(layer){

    document.getElementById(layer).style.visibility='visible';
}
function hideMenu(layer){

    document.getElementById(layer).style.visibility='hidden';
}

function submitReageer(){

	var fout=0;
	
	if(document.getElementById('naam').value=='') {
		fout=1;
		document.getElementById('naam').className='red';
	} else {
		document.getElementById('naam').className='';
	}
	if(document.getElementById('emailadres').value=='') {
		fout=1;
		document.getElementById('emailadres').className='red';
	} else {
		document.getElementById('emailadres').className='';
	}
	if(document.getElementById('reactie').value=='') {
		fout=1;
		document.getElementById('reactie').className='red';
	} else {
		document.getElementById('reactie').className='';
	}
	
	if(!fout) {
		
		document.reactieForm.submit();
	}
}
function submitBrochure(){

	var fout=0;
	
	if(document.getElementById('naam').value=='') {
		fout=1;
		document.getElementById('naam').className='red';
	} else {
		document.getElementById('naam').className='';
	}
	if(document.getElementById('adres').value=='') {
		fout=1;
		document.getElementById('adres').className='red';
	} else {
		document.getElementById('adres').className='';
	}
	if(document.getElementById('postcode').value=='') {
		fout=1;
		document.getElementById('postcode').className='red';
	} else {
		document.getElementById('postcode').className='';
	}
	if(document.getElementById('plaats').value=='') {
		fout=1;
		document.getElementById('plaats').className='red';
	} else {
		document.getElementById('plaats').className='';
	}
	if(document.getElementById('telefoon').value=='') {
		fout=1;
		document.getElementById('telefoon').className='red';
	} else {
		document.getElementById('telefoon').className='';
	}
	if(document.getElementById('emailadres').value=='') {
		fout=1;
		document.getElementById('emailadres').className='red';
	} else {
		document.getElementById('emailadres').className='';
	}
	if(document.getElementById('bouwplaats').value=='') {
		fout=1;
		document.getElementById('bouwplaats').className='red';
	} else {
		document.getElementById('bouwplaats').className='';
	}
	
	if(!fout) {
		
		document.aanvraagForm.submit();
	}
}
function frameAfdruk() {
	
	document.frames['iframeAfdruk'].focus();
	document.frames['iframeAfdruk'].print();
}
function submitDoorsturen(){

	var fout=0;
	
	if(document.getElementById('emailadres2').value=='') {
		fout=1;
		document.getElementById('emailadres2').className='red';
	} else {
		document.getElementById('emailadres2').className='';
	}
	
	if(!fout) {
		
		document.doorsturenForm.submit();
	}
}
function loadThumb(id,actie) {
	
	var totaal=document.getElementById('aantalTotaal_'+id).value;
	var huidig=document.getElementById('aantalAfbVanaf_'+id).value;
	var srcThumb='http://www.ninet-cms.nl/bedrijven/huisbouwen/bouwstijlen/uploadsGroot/';
	
	if(actie=='plus') {
	
		if(huidig<totaal) {
			
			var nr=parseFloat(huidig)+1;
			
			document.getElementById('aantalAfbVanaf_'+id).value=nr;

			document.getElementById('afb_'+id).src=srcThumb+document.getElementById('afb_'+id+'_'+nr).value;
			
		} 
	}
	
	if(actie=='min') {

		if(huidig>1) {
			
			var nr=parseFloat(huidig)-1;
			
			document.getElementById('aantalAfbVanaf_'+id).value=nr;
			
			document.getElementById('afb_'+id).src=srcThumb+document.getElementById('afb_'+id+'_'+nr).value;
		} 
	}
}