function swapImage()
{
	var raam = document.getElementById('raamimage'); 
	//console.debug(imageNr + ": " + anyArray[imageNr]);
	raam.style.backgroundImage = anyArray[imageNr];
	imageNr++;
	if(imageNr >= 20)
	{
		imageNr = 0;
	}
	return (imageNr);
}
function callSwapImage()
{
	setInterval('swapImage()',3000);
}

function randOrd(){
return (Math.round(Math.random())-0.5); 
}
var imageNr 	= 0;
var anyArray 	= new Array(
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/01.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/02.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/03.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/04.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/05.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/06.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/07.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/08.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/09.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/10.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/11.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/12.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/13.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/14.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/15.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/16.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/17.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/18.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/19.jpg')",
"url('http://calvijn.hsn-scholen.nl/qsites/images/000002255/homepage/20.jpg')"
)
anyArray.sort( function() {return 0.5 - Math.random()} );


//call function
window.onload=callSwapImage;