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_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_findObj(n, d) { //v3.0
  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); 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 checkform(f)
  {
  if (f.elements['bedrijf'].value == "")
    {
    alert("Geen naam ingevoerd.");
    window.location.href = "#na";
    window.setTimeout("window.document.theForm.elements['naam'].focus()",500);
    return (false);
    }
  if (f.elements['adres'].value == "")
    {
    alert("Geen adres ingevoerd.");
    window.location.href = "#a";
    window.setTimeout("window.document.theForm.elements['adres'].focus()",500);
    return (false);
    }
  if (f.elements['postcode'].value == "")
    {
    alert("Geen postcode ingevoerd.");
    window.location.href = "#e";
    window.setTimeout("window.document.theForm.elements['postcode'].focus()",500);
    return (false);
    }
  if (f.elements['plaats'].value == "")
    {
    alert("Geen woonplaats ingevoerd.");
    window.location.href = "#oz";
    window.setTimeout("window.document.theForm.elements['plaats'].focus()",500);
    return (false);
    }
  if (f.elements['telefoon'].value == "")
    {
    alert("Geen telefoon ingevoerd.");
    window.location.href = "#op";
    window.setTimeout("window.document.theForm.elements['telefoon'].focus()",500);
    return (false);
    }
  if (f.elements['email'].value == "")
    {
    alert("Geen e-mail ingevoerd.");
    window.location.href = "#op";
    window.setTimeout("window.document.theForm.elements['email'].focus()",500);
    return (false);
    }
	 else f.submit();			
  }


function popitup(locatie,windowname,x,y)
	{
	var parameters = "'toolbar=no,status=no,directories=no,menubar=no,scrollbars=yes,resizable=yes,location=no,width=" + x + ",height=" + y + "'";
	window.open(locatie,windowname,parameters);
	// windowname.moveTo(0,0);
	}