header.html

<nav id="top-nav" class="navbar navbar-default" role="navigation">
	<div class="container-fluid">
    	<!-- Brand and toggle get grouped for better mobile display -->
    	<div class="navbar-header">
      		<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
        		<span class="sr-only">Toggle navigation</span>
        		<span class="icon-bar"></span>
        		<span class="icon-bar"></span>
        		<span class="icon-bar"></span>
      		</button>
      		<a class="navbar-brand" href="/"><img src="images/Textbook-Xchange-Logo.png" /></a>
    	</div>

    	<!-- Collect the nav links, forms, and other content for toggling -->
    	<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      		<form class="navbar-form navbar-left" role="search">
        		<div class="form-group">
          			<input type="text" class="form-control">
        		</div>
        		<button type="submit" class="btn btn-default">Search</button>
      		</form>
      		<ul class="nav navbar-nav navbar-left">
        		<li><a href="searchResults.php">Buy a book</a></li>
        		<li><a href="sell.php">Sell a book</a></li>
      		</ul>
    	</div><!-- /.navbar-collapse -->
  	</div><!-- /.container-fluid -->
</nav>