function openDing(ding,origin){
		//alert('btn_'+ding+'_home en /media/'+ding+'Open.');
		if(ding=="Boek"||origin=='content'){
			ext='gif'
		}else{
			ext='jpg'
		}
		//alert('btn_'+ding+'_'+origin);
		changeImage('btn_'+ding+'_'+origin,'/media/'+ding+'Open.'+ext);
		//showLayer('btn_deur_spel_home');
		EvalSound(ding+'_open','play');
	}
	function sluitDing(ding,origin){
		if(ding=="Boek"){
			changeImage('btn_Boek_'+origin,'/media/boekDicht.gif');
		}else if(ding=="Deur"){
			changeImage('btn_Deur_'+origin,'/media/nix.gif');
		}else if(origin=='content'){
			changeImage('btn_'+ding+'_'+origin,'/media/'+ding+'Dicht.gif');
		}else{
			changeImage('btn_Koffer_'+origin,'/media/kofferDicht.jpg');
		}
		EvalSound(ding+'_dicht','play');
		EvalSound('deur_open','stop');
		EvalSound('Kamer_open','stop');
	}
	
	var thissound = ''

	function EvalSound(soundobj,action) {
	  thissound = document.getElementById(soundobj);
	  try{
		if (action=='stop'){
	  		thissound.Stop();
		}else{
			thissound.Play();
		}
		}catch (e){}
	}