/*
 *
 *	javascript functions
 *
 */


function checkForm(objForm) {
	if (!objForm)
		objForm = document.forms[0];
	for (var f=0; f<objForm.length; f++) {
		if (objForm[f].type != "hidden") {
			if (objForm[f].value == "" && typeof objForm["mandatory_"+objForm[f].name] != "undefined") {
				alert("Het veld '"+objForm[f].name+"' is verplicht");
				objForm[f].focus();
				return false;
			}
		}
	}
	return true;
}
function popupimage(s) {
	var oImage = new Image();
	oImage.src = s;
	if (document.layers) { // netscape 4.x
		oImage.onLoad = _after_image_loaded;
	} else {
		_after_image_loaded(oImage);
	}
}
function _after_image_loaded(evnt) {
	var oImage;
	if (document.layers) { // netscape 4.x
		oImage = evnt.target;
	} else {
		oImage = evnt;
	}
	window.open('viewimage.asp?img='+escape(oImage.src), "nwwin",
		'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,'+
		'left='+((screen.width-oImage.width)/2)+',top='+((screen.height-oImage.height)/2)+','+
		'width='+(oImage.width+10)+',height='+(oImage.height+10)+'');
}


/*
 *
 *	Macromedia functions
 *
 */

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) { //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];}
}