function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function init() {
	resizeWindow()
}
function resizeWindow() {
	var imageHeight = 167
	var footerHeight = 25
	var WinHeight = (document.layers)? window.innerHeight:document.body.clientHeight
	var Offset = (document.layers)? window.pageYOffset:document.body.scrollTop
	var positionY = WinHeight + Offset - imageHeight
	var pageHeight = document.body.scrollHeight

	if(positionY > 200) {
		if((positionY+imageHeight) == (pageHeight))
			positionY = positionY-footerHeight
		else if((positionY+imageHeight) > (pageHeight-footerHeight)) {
			var verschil = (positionY+imageHeight) - (pageHeight-footerHeight)
			positionY = positionY - verschil
		}
		document.getElementById('bottomLeftNav').style.top = (positionY)+'px'
	}
	setTimeout('resizeWindow()',100)
}

function popup(url, width, height){
	xl = (screen.availWidth/2)-(width/2)
	tt = (screen.availHeight/2)-(height/2)
	picture=window.open(url,'showSearch','toolbar=no,scrolling=yes,resizable=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,width='+width+',height='+height+',left='+xl+',top='+tt);
	picture.focus()
}
function popup_noscroll(url, width, height){
	xl = (screen.availWidth/2)-(width/2)
	tt = (screen.availHeight/2)-(height/2)
	picture=window.open(url,'showSearch','toolbar=no,scrolling=no,resizable=no,location=no,directories=no,status=no,scrollbars=no,menubar=no,width='+width+',height='+height+',left='+xl+',top='+tt);
	picture.focus()
}


function checkOrderForm(){
	// achternaam
	if(document.submitform.frm_naw_achternaam.value=='') {
		alert ('Achternaam is leeg.');
		document.submitform.frm_naw_achternaam.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_achternaam.focus();
		return false;
	}
	
	// voornaam
	if(document.submitform.frm_naw_voorletters.value=='') {
		alert ('Voornaam is leeg.');
		document.submitform.frm_naw_voorletters.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_voorletters.focus();
		return false;
	}
	
	// adres
	if(document.submitform.frm_naw_adres.value=='') {
		alert ('Adres is leeg.');
		document.submitform.frm_naw_adres.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_adres.focus();
		return false;
	}
	
	// postcode
	if(document.submitform.frm_naw_postcode.value=='') {
		alert ('Postcode is leeg.');
		document.submitform.frm_naw_postcode.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_postcode.focus();
		return false;
	}
	
	// woonplaats
	if(document.submitform.frm_naw_woonplaats.value=='') {
		alert ('Woonplaats is leeg.');
		document.submitform.frm_naw_woonplaats.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_woonplaats.focus();
		return false;
	}
	
	// telnr
	if(document.submitform.frm_naw_telefoonnummer.value=='') {
		alert ('Telefoonnummer is leeg.');
		document.submitform.frm_naw_telefoonnummer.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_telefoonnummer.focus();
		return false;
	}
	
	//EMAIL
	if (document.submitform.frm_naw_email.value==''){
		alert('Email is leeg.');
		document.submitform.frm_naw_email.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_email.focus();
		return false;
	}
	
	if (document.submitform.frm_naw_email.value.indexOf("@",0)< 1 || document.submitform.frm_naw_email.value.indexOf(".",0) < 1) {
		alert('Email is incorrect.');
		document.submitform.frm_naw_email.style.border = '2px solid #FF0000';
		document.submitform.frm_naw_email.focus();
		return false;
	}
	
	else {
		return true;
	}	
}