Bootstrap Tree menu


	<div class="container">
	<div class="row">
		<div id="left" class="span3">
            <ul id="menu-group-1" class="nav menu">  
                <li class="item-1 deeper parent active">
                    <a class="" href="javascript:;">
                        <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-1" class="sign"><i class="icon-plus icon-white"></i></span>
                        <span class="lbl">Menu Group i</span>                      
                    </a>
                    <ul class="children nav-child unstyled small collapse" id="sub-item-1">
                        <li class="item-2 deeper parent active">
                            <a class="" href="javascript:;">
                                <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-2" class="sign"><i class="icon-plus icon-white"></i></span>
                                <span class="lbl">Menu 1</span> 
                            </a>
                            <ul class="children nav-child unstyled small collapse" id="sub-item-2">
                                <li class="item-3 current active">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 1.1</span> (current menu)
                                    </a>
                                </li>
                                <li class="item-4">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 1.2</span> 
                                    </a>
                                </li>                                
                            </ul>
                        </li>
                        <li class="item-5 deeper parent">
                            <a class="" href="javascript:;">
                                <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-5" class="sign"><i class="icon-plus icon-white"></i></span>
                                <span class="lbl">Menu 2</span> 
                            </a>
                            <ul class="children nav-child unstyled small collapse" id="sub-item-5">
                                <li class="item-6">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 2.1</span>                                    
                                    </a>
                                </li>
                                <li class="item-7">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 2.2</span>                                    
                                    </a>
                                </li>
                            </ul>
                        </li>
                    </ul>
                </li>

                <li class="item-8 deeper parent">
                    <a class="" href="javascript:;">
                        <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-8" class="sign"><i class="icon-plus icon-white"></i></span>
                        <span class="lbl">Menu Group ii</span>                      
                    </a>
                    <ul class="children nav-child unstyled small collapse" id="sub-item-8">
                        <li class="item-9 deeper parent">
                            <a class="" href="javascript:;">
                                <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-9" class="sign"><i class="icon-plus icon-white"></i></span>
                                <span class="lbl">Menu 1</span> 
                            </a>
                            <ul class="children nav-child unstyled small collapse" id="sub-item-9">
                                <li class="item-10">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 1.1</span>
                                    </a>
                                </li>
                                <li class="item-11">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 1.2</span> 
                                    </a>
                                </li>                                
                            </ul>
                        </li>
                        <li class="item-12 deeper parent">
                            <a class="" href="javascript:;">
                                <span data-toggle="collapse" data-parent="#menu-group-1" href="#sub-item-12" class="sign"><i class="icon-plus icon-white"></i></span>
                                <span class="lbl">Menu 2</span> 
                            </a>
                            <ul class="children nav-child unstyled small collapse" id="sub-item-12">
                                <li class="item-13">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 2.1</span>                                    
                                    </a>
                                </li>
                                <li class="item-14">
                                    <a class="" href="javascript:;">
                                        <span class="sign"><i class="icon-play"></i></span>
                                        <span class="lbl">Menu 2.2</span>                                    
                                    </a>
                                </li>
                            </ul>
                        </li>
                    </ul>
                </li>    			
            </ul>          
		</div>
	</div>
</div>
	<script type="text/javascript"></script>

    /* MENU-LEFT
-------------------------- */
/* layout */
#left ul.nav {
    margin-bottom: 2px;
    font-size: 12px; /* to change font-size, please change instead .lbl */
}
#left ul.nav ul,
#left ul.nav ul li {
    list-style: none!important;
    list-style-type: none!important;
    margin-top: 1px;
    margin-bottom: 1px;
}
#left ul.nav ul {
    padding-left: 0;
    width: auto;
}
#left ul.nav ul.children {
    padding-left: 12px;
    width: auto;
}
#left ul.nav ul.children li{
    margin-left: 0px;
}
#left ul.nav li a:hover {
    text-decoration: none;
}

#left ul.nav li a:hover .lbl {
    color: #999!important;
}

#left ul.nav li.current>a .lbl {
    background-color: #999;
    color: #fff!important;
}

/* parent item */
#left ul.nav li.parent a {
    padding: 0px;
    color: #ccc;
}
#left ul.nav>li.parent>a {
    border: solid 1px #999;
    text-transform: uppercase;
}    
#left ul.nav li.parent a:hover {
    background-color: #fff;
    -webkit-box-shadow:inset 0 3px 8px rgba(0,0,0,0.125);
    -moz-box-shadow:inset 0 3px 8px rgba(0,0,0,0.125);
    box-shadow:inset 0 3px 8px rgba(0,0,0,0.125);    
}

/* link tag (a)*/
#left ul.nav li.parent ul li a {
    color: #222;
    border: none;
    display:block;
    padding-left: 5px;    
}

#left ul.nav li.parent ul li a:hover {
    background-color: #fff;
    -webkit-box-shadow:none;
    -moz-box-shadow:none;
    box-shadow:none;  
}

/* sign for parent item */
#left ul.nav li .sign {
    display: inline-block;
    width: 14px;
    padding: 5px 8px;
    background-color: transparent;
    color: #fff;
}
#left ul.nav li.parent>a>.sign{
    margin-left: 0px;
    background-color: #999;
}

/* label */
#left ul.nav li .lbl {
    padding: 5px 12px;
    display: inline-block;
}
#left ul.nav li.current>a>.lbl {
    color: #fff;
}
#left ul.nav  li a .lbl{
    font-size: 12px;
}

/* THEMATIQUE
------------------------- */
/* theme 1 */
#left ul.nav>li.item-1.parent>a {
    border: solid 1px #ff6307;
}
#left ul.nav>li.item-1.parent>a>.sign,
#left ul.nav>li.item-1 li.parent>a>.sign{
    margin-left: 0px;
    background-color: #ff6307;
}
#left ul.nav>li.item-1 .lbl {
    color: #ff6307;
}
#left ul.nav>li.item-1 li.current>a .lbl {
    background-color: #ff6307;
    color: #fff!important;
}

/* theme 2 */
#left ul.nav>li.item-8.parent>a {
    border: solid 1px #51c3eb;
}
#left ul.nav>li.item-8.parent>a>.sign,
#left ul.nav>li.item-8 li.parent>a>.sign{
    margin-left: 0px;
    background-color: #51c3eb;
}
#left ul.nav>li.item-8 .lbl {
    color: #51c3eb;
}
#left ul.nav>li.item-8 li.current>a .lbl {
    background-color: #51c3eb;
    color: #fff!important;
}

/* theme 3 */
#left ul.nav>li.item-15.parent>a {
    border: solid 1px #94cf00;
}
#left ul.nav>li.item-15.parent>a>.sign,
#left ul.nav>li.item-15 li.parent>a>.sign{
    margin-left: 0px;
    background-color: #94cf00;
}
#left ul.nav>li.item-15 .lbl {
    color: #94cf00;
}
#left ul.nav>li.item-15 li.current>a .lbl {
    background-color: #94cf00;
    color: #fff!important;
}

/* theme 4 */
#left ul.nav>li.item-22.parent>a {
    border: solid 1px #ef409c;
}
#left ul.nav>li.item-22.parent>a>.sign,
#left ul.nav>li.item-22 li.parent>a>.sign{
    margin-left: 0px;
    background-color: #ef409c;
}
#left ul.nav>li.item-22 .lbl {
    color: #ef409c;
}
#left ul.nav>li.item-22 li.current>a .lbl {
    background-color: #ef409c;
    color: #fff!important;
}
    

	!function ($) {
    
    // Le left-menu sign
    /* for older jquery version
    $('#left ul.nav li.parent > a > span.sign').click(function () {
        $(this).find('i:first').toggleClass("icon-minus");
    }); */
    
    $(document).on("click","#left ul.nav li.parent > a > span.sign", function(){          
        $(this).find('i:first').toggleClass("icon-minus");      
    }); 
    
    // Open Le current menu
    $("#left ul.nav li.parent.active > a > span.sign").find('i:first').addClass("icon-minus");
    $("#left ul.nav li.current").parents('ul.children').addClass("in");

}(window.jQuery);