function RandomImage() {
	var theImages = new Array();
	
	for (i=0;i<8;i++){
		theImages[i] = 'huisstijl_images/foto_'+i+'.jpg';
	}
	
	var p = theImages.length;
	var preBuffer = new Array();
	
	for (i = 0; i < p; i++){
	   preBuffer[i] = new Image();
	   preBuffer[i].src = theImages[i];
	}
	var whichImage = Math.round(Math.random()*(p-1));
	
	document.write('<style type="text/css" media="all">');
	document.write('#illustratie{');
	document.write('background-image:url(images_zwd/'+theImages[whichImage]+');');
	document.write('width:150px;');
	document.write('height:130px;');
	document.write('overflow:hidden;');
	document.write('}');
	document.write('</style>');
}