function writeBg(bg)
{
	if (bg == undefined) {
		// place movie
	var flashvars 	= {};
	var params 		= {};
	params.wmode 	= "transparent";
	params.salign	= "tl";
	var attributes 	= {};
	attributes.id 	= "flashBg";
	swfobject.embedSWF("/frontend/swf/BG_kickxl.swf", "flashBg", "100%", "100%", "9.0.0", false, flashvars, params, attributes);
	}else if (bg == 'none') {
		$("#flashBg").html('');
	}else{
		// place image
		backgroundArray = Array('glasvezelbehang.jpg','grijs_verloop.jpg','Kabels.jpg');
		$("#flashBg").html('<img src="/frontend/images/backgrounds/'+backgroundArray[bg]+'" style="width:100%" />');
	}

}