(function() {
	var options = [];
	
	var s = document.getElementById('noesis-search');
	
	if( s ) {
		var elements = s.getElementsByTagName('form')[0].getElementsByTagName('input');
		for (var i = 0; i < elements.length; i++) {
			var element = elements[i];
			if (element.type == 'radio') {
				options[options.length] = element;
				element.onclick = function() {
					update();
				}
			}
		}

		function update() {
			for (var i = 0; i < options.length; i++) {
				var o = options[i];
				if (o.checked) { o.form.className = o.value; }
			}
		}
		update();
	}
})();