$(document).ready(function(){
	$("#browser").treeview({
		animated:"fast",
		persist: "location",
		unique: "true",
		collapsed: "false"
	});

	$("#samplebutton").click(function(){
		var branches = $("<li><span class='folder'>New Sublist</span><ul>" + 
			"<li><span class='file'>Item1</span></li>" + 
			"<li><span class='file'>Item2</span></li></ul></li>").appendTo("#browser");
		$("#browser").treeview({
			add: branches
		});
	});
});