function toggleSearch(key) {
  var label = document.getElementById('zoekbox').getElementsByTagName('label');
  var hidden = document.getElementById('zoekbox').getElementsByTagName('input');
 
  //radio-effectje
  for (var i=0; i < label.length; i++) {
	label[i].className = 's-off';
	if (label[i].getAttribute("id") == key) { 
	  label[i].className= 's-on';
	}
  }
  
  // unieke (hidden) google-values activeren/verbergen
  for (var i=0; i < hidden.length; i++ ) {
    if (hidden[i].getAttribute("title")) {
	  hidden[i].disabled = (hidden[i].getAttribute("title") == key) ? false : true;
	}
  }
  
  // gedeelde google-values veranderen
  if (key == 's_web') {
    //combined
	document.getElementById('google').action = 'http://www.google.com/custom' 
	document.getElementById('s-client').value = 'pub-9821401243640895';
  } else {
  	//combined
    document.getElementById('google').action = 'http://google.zeelandnet.nl/search';
	document.getElementById('s-client').value = 'zeelandnet-www';
  }
  
}