// tabs - jQuery plugin for accessible, unobtrusive tabs by Klaus Hartl
// http://stilbuero.de/tabs/

$.tabs = function(containerId, start) {
	var ON_CLASS = 'on';
	var id = '#' + containerId;
	var i = (typeof start == "number") ? start - 1 : 0;
	$(id + '>div:lt(' + i + ')').add(id + '>div:gt(' + i + ')').hide();
	$(id + '>ul>li:nth-child(' + i + ')').addClass(ON_CLASS);
	$(id + '>ul>li>a').click(function() {
	  if (!$(this.parentNode).is('.' + ON_CLASS)) {
			var re = /([_\-\w]+$)/i;
			var target = $('#' + re.exec(this.href)[1]);
			if (target.size() > 0) {
				 $(id + '>div:visible').hide();
				 target.show();
				 $(id + '>ul>li').removeClass(ON_CLASS);
				 $(this.parentNode).addClass(ON_CLASS);
			} else {
				 alert('There is no such container.');
			}
	  }
	  return false;
	});
};