function openVacature(vacature_id)
{
	var div = document.getElementById(vacature_id);
	div.style.display = 'block';
}

Event.observe( window, 'load', function(event) {
	$$('a.case').each( function(el) {
		var popup = el.firstDescendant();

		if( popup.match('.popup') ) {
			el.observe('mouseover', function() {
				popup.show();
			});

			el.observe('mouseout', function() {
				popup.hide();
			});
		}
	});
});