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var menu = spMenuSpider.getMenu();
//Assume we had an empty div in the masterpage with a class of mobile menu
//Shove the clean menu html (see the example output) into the empty div
$(".mobile-menu").html(menu.toHtml());
//In this example we'd use media queries to hide the normal top nav and show 'mobile-menu' if the user is on a phone

<ul class='cleanmenu'>
    <li class='menuitem'><a class='menulink' href='/SitePages/Home.aspx'>Root</a></li>
    <li class='menuitem'><a class='menulink' href='/clients'>Clients</a></li>
    <li>
        <ul class='submenu'>
            <li class='menuitem'><a class='menulink' href='/clients/manitowoc'>Manitowoc</a></li>
        </ul>
    </li>
    <li class='menuitem'><a class='menulink' href='http://google.com'>HeadingNoChildrenNoLink</a></li>
    <li class='menuitem'><a class='menulink' href='http://google.com'>Heading with Link but no children</a></li>
    <li class='menuitem'><a class='menulink' href='http://google.com'>Heading 1</a></li>
    <li>
        <ul class='submenu'>
            <li class='menuitem'><a class='menulink' href='http://google.com'>Child Link</a></li>
            <li class='menuitem'><a class='menulink' href='http://my.skylinetechnologies.com'>Child Link 2</a></li>
        </ul>
    </li>
</ul>

var spMenuSpider = (function($) {
	var menu = [];

	var MenuLink = function (name, url) {
		this.name = name || "",
		this.url = url || "#",
		this.children = [];
	};

	MenuLink.prototype.toHtml = function() {
		var html = "<li class='menuitem'>";
		html += "<a class='menulink' href='" + this.url + "'>" + this.name + "</a></li>"

		if (this.children.length) {
			html += "<li><ul class='submenu'>";
			for (var i = 0; i < this.children.length; i++) {
				html += this.children[i].toHtml();
			}
			html += "</ul></li>";
		}
		return html;
	}


	var toHtml = function() {
		var html = "<ul class='cleanmenu'>"
		for (var i = 0; i < menu.length; i++) {
			html += menu[i].toHtml();
		}
		html += "</ul>";

		return html;
	};

	var getMenu = function() {
		menu = [];
		var $root = $(".s4-toplinks ul.root");
		$root.find(".static.menu-item").each(function(){
			var $this = $(this);
			var link = new MenuLink($this.text(), $this.attr("href"));
			if ($this.closest("li").hasClass("dynamic-children")) {
				link.children = getSubMenuLinks($this.closest("li").find("ul.dynamic"));
			}
			menu.push(link);
		});

		menu.toHtml = toHtml;
		return menu;
	};

	var getSubMenuLinks = function($ul) {
		var children = [];
		$ul.find(".dynamic.menu-item").each(function(){
			$this = $(this);
			var link = new MenuLink($this.text(), $this.attr("href"));
			children.push(link);
		});
		return children;
	};

	return {
		getMenu: getMenu
	};
})(jQuery);