remove class from last items

<div class="ul-list">
					<ul class="menu-admin">

						<li class="level1 current"><a href="javascript:void(0);" onclick="call(1)">1</a></li>
						<li class="level1"><a href="javascript:void(0);" onclick="call(2)">2</a></li>
						<li class="level1"><a href="javascript:void(0);" onclick="call(3)">3</a></li>
						<li class="level1"><a href="javascript:void(0);" onclick="call(4)">4</a></li>
						<li class="level1"><a href="javascript:void(0);" onclick="call(5)">5</a></li>

					</li>
					</ul>
				</div>
				<script type="text/javascript">
				(function () {
        			 $('.menu-admin li a').click(function(){
				      var item=$(this).parent();
				       $('li').removeClass('current');
				       item.addClass("current")
				    });
				})();
				</script>