function verbergrest(obj){
	
	//alert(obj);
	var keus = parseInt(obj.substring(2));
	
	switch(keus){
		case 1:
		//alert(keus + " Toppie.. nummertje 1");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="hidden";
		break;  
		  
		case 2:
		//alert(keus + " Toppie.. nummertje 2");
		  	document.getElementById('pd2').style.visibility="visible";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="hidden";
		break;
		
		case 3:
		//alert(keus + " Toppie.. nummertje 3");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="visible";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="hidden";
		break;
		
		case 4:
		//alert(keus + " Toppie.. nummertje 4");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="visible";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="hidden";
		break;
		
		case 5:
		//alert(keus + " Toppie.. nummertje 5");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="visible";
			document.getElementById('pd6').style.visibility="hidden";
		break;
		
		case 6:
		//alert(keus + " Toppie.. nummertje 6");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="visible";
		break;
		
		case 7:
		//alert(keus + " Toppie.. nummertje 7");
		  	document.getElementById('pd2').style.visibility="hidden";
			document.getElementById('pd3').style.visibility="hidden";
			document.getElementById('pd4').style.visibility="hidden";
			document.getElementById('pd5').style.visibility="hidden";
			document.getElementById('pd6').style.visibility="hidden";
		break;
	
		default:
		//alert("het was: " + keus + " ,dus nix geselecteerd!!!");
		document.getElementById('pd2').style.visibility="visible";
		document.getElementById('pd3').style.visibility="visible";
		document.getElementById('pd4').style.visibility="visible";
		document.getElementById('pd5').style.visibility="visible";
		document.getElementById('pd6').style.visibility="visible";
		} 
}