function correctPNG() 
   {
   for(var i=0; i<document.images.length; i++)
      {
	  var img = document.images[i]
	  var imgName = img.src.toUpperCase()
	  if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	     {
		 var imgID = (img.id) ? "id='" + img.id + "' " : ""
		 var imgClass = (img.className) ? "class='" + img.className + "' " : ""
		 var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
		 var imgStyle = "display:inline-block;" + img.style.cssText 
		 if (img.align == "left") imgStyle = "float:left;" + imgStyle
		 if (img.align == "right") imgStyle = "float:right;" + imgStyle
		 if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle		
		 var strNewHTML = "<span " + imgID + imgClass + imgTitle
		 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	     + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
		 + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
		 img.outerHTML = strNewHTML
		 i = i-1
	     }
      }
   }

function showDiv(img, voorraad_id) {
	window.open('voorraad_afbeelding.php?voorraad_id=' + voorraad_id + '&id=' + img,'img','top=100,left=100,height=250 ,width=300,toolbar=no,menubar=no,scrollbars=no,resizable=yes,location=no,directories=no,status=no');
}
   
function alphaBackgrounds(){
	var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
	var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
	for (i=0; i<document.all.length; i++){
		var bg = document.all[i].currentStyle.backgroundImage;
		if (itsAllGood && bg){
			if (bg.match(/\.png/i) != null){
				var mypng = bg.substring(5,bg.length-2);
				document.all[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+mypng+"', sizingMethod='scale')";
				document.all[i].style.backgroundImage = "url('bg.gif')";
			}
		}
	}
}
function mySubmit() {

var fout=0;

	if(document.contactfomulier.contactpersoon.value=='') {
	
	document.contactfomulier.contactpersoon.className='red';
	fout=1;
	} else {
	document.contactfomulier.contactpersoon.className='';
	}
	
	if(document.contactfomulier.beroep.value=='') {
	
	document.contactfomulier.beroep.className='red';
	fout=1;
	} else {
	document.contactfomulier.beroep.className='';
	}
	
	if(!fout) {
		
		document.contactfomulier.submit();		
	}
}

function afDrukken() {
	
	window.frames['iframe'].focus();
	window.frames['iframe'].print();
}