[Resolvido] Form busca

Boa noite galera,

Estou precisando de uma ajuda quero um exemplo de form de busca que ele apareça somente quando clicar na lupa e que fique no tamanho que sobra no navbar olha meu html.

<nav class="navbar navbar-default" role="navigation">
 <div class="container-fluid">
 <div class="navbar-header">
 <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
 <span class="icon-bar"></span>
 <span class="icon-bar"></span>
 <span class="icon-bar"></span>
 </button>
 </div>
 <div class="collapse navbar-collapse" id="myNavbar">
 <ul id="menu-main-menu" class="nav navbar-nav">
 <li class="nav-item"><a href="#"><span class="glyphicon glyphicon-home" style="padding: 0px 5px"></span>Home</a></li>
 <li class="nav-item"><a href="#"><span class="glyphicon glyphicon-info-sign" style="padding: 0px 5px"></span>A Empresa</a></li>

 <li class="nav-itemd dropdown">
 <a href="#" class="dropdown-toggle" data-toggle="dropdown"
 role="button" aria-expanded="true">
 <span class="glyphicon glyphicon glyphicon-th" style="padding: 0px 5px"></span>
 Persianas <span class="caret"></span></a>
 <ul class="dropdown-menu" id="persinas">
 <asp:DataList ID="itemPersianas" RepeatColumns="1" runat="server">
 <itemtemplate>
 <li><span style="padding-left:15px;"></span><a href="produtos.aspx?ProdutosId=<%# Eval("MenuId")%>">
 <%# Eval("Titulo") %>
 </a></li>
 </itemtemplate>
 </asp:DataList>
 </ul>
 </li>
 <li class="nav-item dropdown">
 <a href="#" class="dropdown-toggle" data-toggle="dropdown"
 role="button" aria-expanded="false">
 <span class="glyphicon glyphicon-th-large" style="padding: 0px 5px"></span>
 Cortinas <span class="caret"></span></a>
 <ul class="dropdown-menu" id="cortinas">
 <asp:DataList ID="itemCortinas" RepeatColumns="1" runat="server">
 <itemtemplate>
 <li><span style="padding-left:15px;"></span><a href="produtos.aspx?ProdutosId=<%# Eval("MenuId")%>">
 <%# Eval("Titulo") %>
 </a></li>
 </itemtemplate>
 </asp:DataList>
 </ul>
 </li>
 <li class="nav-item"><a href="#"><span class="glyphicon glyphicon-globe" style="padding: 0px 5px"></span>Parceiros</a></li>
 <li class="nav-item"><a href="#"><span class="glyphicon glyphicon-envelope" style="padding: 0px 5px"></span>Contato</a></li>
 </ul>
 <form class="navbar-form navbar-right" runat="server" role="search" action="#" method="get" id="BuscaForm">
 <div class="input-group">
 <asp:TextBox ID="BuscaTextBox" runat="server" class="form-control" placeholder="Pesquisar produtos" name="BuscaTextBox" style="padding:6px 6px;"></asp:TextBox>
 <div class="input-group-btn">
 <button class="btn btn-default" type="submit"><i class="glyphicon glyphicon-search"></i></button>
 </div>
 </div>
 </form>
 </div>
 </div>
</nav>