/* prevent IE background-flicker */
try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {} 

/* global functions */
function ShowHideById(element) {
	var div = element.nextSibling;
	
	if (div.style.display == 'none') {
		// toon menu
		div.style.display = '';
		element.className = 'kiesTitle';
	} else {
		// verberg menu
		div.style.display = 'none';
		element.className = 'kiesTitle closed';
	}
}

/* gebruik:

<a href='..tralala...' onclick='ShowHideById(this)'>Tekst</a>
<div class='menu'>
     <ul>
         <li>Item 1</li>
         <li>Item 2</li>
     </ul>
</div>

<a href=...
*/