anchor.diff:  				<a class="nav-link" href='#'>Tac</a>
   			</li>
   		</ul>
  -		<% if(user==null){
  -			%><p class="navbar-text" style="padding-right: 40px">You are not sign in </p>
  -		<% }else {%>
  -			<p class="navbar-text" style="padding-right: 40px">Signed in as: ${userBean.name}</p>
  -		 <%} %>
  +		<c:choose>
  +			<c:when test="${userBean == null }">
  +				<p class="navbar-text" style="padding-right: 40px">You are not sign in </p>
  +			</c:when>
  +			<c:otherwise>
  +				<p class="navbar-text" style="padding-right: 40px">Signed in as: ${userBean.name}</p>
  +			</c:otherwise>
  +		</c:choose>
   		<form class="form-inline" action="SearchController" method="GET">
          		<div class="form-group">
            			<ul id="adv-search">
  
positive.code:      		</form>
       		<div>
       			<ul class="navbar-nav">
  				<%if(user == null) {%>
  				<li class="nav-item">
  					<a class="nav-link" href='login.jsp'>Log In</a>
  				</li>
  				<%} else {%>
  				<li class="nav-item">
  					<form action="logout.htm" method="post">
  						<input type="submit" class="link-button btn" value="Log Out"/>
  					</form>
  				</li>
  				<%} %>
  				<li class="nav-item active">
  					<a class="nav-link" href='signup.jsp'>Sign Up</a>
  				</li>
  
negative.code: <jsp:useBean id="useBean" class="com.ticktac.business.User"/>
  <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
  <div role="navigation" class="navbar navbar-toggleable-md navbar-inverse" style="background-color: #9fbc43">
  	<div class="navbar-header" style="border-left: 3px solid #ffdd77; border-right: 3px solid #ffdd77;">
       	<a id="brand" class="navbar-brand nav-link" href="#"><img src="images/ticket.png" alt="" height="35" width="35" hspace="10" /><b>Tick - Tac</b></a>
  