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 doPrint(){
	var divobj = MM_findObj("content");
	divobj.focus(); 
	parent.print()
}

//this function determines the position of an object recursively
function getPosition(obj) {
	var arrPosition = new Array()
  	arrPosition.left = 0
  	arrPosition.right = obj.offsetWidth
  	arrPosition.top = 0
  	arrPosition.bottom = obj.offsetHeight
  	do {
    	arrPosition.left += obj.offsetLeft
    	arrPosition.top += obj.offsetTop
  		obj = obj.offsetParent
  	} while (obj.tagName != 'BODY')
  	arrPosition.right += arrPosition.left
  	arrPosition.bottom += arrPosition.top
  	return arrPosition
}

function addFunction(fReference) {
		/* Deze functie voegt een functie-pointer toe aan de array van functies die uitgevoerd wordt in de body onload. */
		arrFunctions[arrFunctions.length] = fReference;
}

function callAllFunctions() {
	for(var i=0; i < arrFunctions.length; i++) {
		arrFunctions[i]();
		}
}

/* should use element heights to correct the top, but this is easier */
var correctionLessContent = -141;
var correctionMenu = 121;

function changeContentDivHeight()
{
	//debugger;
	var brHeight =  _getBrowserHeight();	
	var offHeight = 0;
	var divcontobj = document.getElementById("content");
	if (divcontobj!=null) 
	{
		if(divcontobj.offsetHeight)
		{
			//debugger;
			offHeight = divcontobj.offsetHeight;
			
			/* if more content then leave content as is en correct menu height */
			if(offHeight <  brHeight)
			{
				
				divcontobj.style.height	= (brHeight + correctionLessContent) + 'px';							
			}
		}
	}
	
	divmenuobj = document.getElementById("menuonderback");
	if (divmenuobj!=null) 
	{
		if(offHeight <  brHeight)
		{
			divmenuobj.style.height	= brHeight + 'px';
		}else{
			divmenuobj.style.height	= ( offHeight + correctionMenu) + 'px';
		}
	}
}

function _getBrowserHeight() 
{ 
	 var h;
	if(document.innerHeight){ 
	    h = document.innerHeight;
	} 
	else if(document.documentElement.clientHeight)
	{ 
	    h = document.documentElement.clientHeight;
	}  
	else if(document.body)
	{ 
	    h = document.body.clientHeight; 
	}
	return h;
}

function clearInput(el) {	el.value = ""; }

function notImplemented()
{
    alert('Deze functionaliteit is nog niet beschikbaar');
}