$(document).ready(function(){
		
	// first example
	$("#navigation").treeview({
		collapsed: true,
		unique: true,
		persist: "location"
	});

});

function getVideo(video)
{
	if (video == "one"){
		document.getElementById("video_one").style.display = "block";
		document.getElementById("video_two").style.display = "none";
		document.getElementById("video_three").style.display = "none";
		document.getElementById("video_four").style.display = "none";
	}
	if (video == "two"){
		document.getElementById("video_one").style.display = "none";
		document.getElementById("video_two").style.display = "block";
		document.getElementById("video_three").style.display = "none";
		document.getElementById("video_four").style.display = "none";
	}
	if (video == "three"){
		document.getElementById("video_one").style.display = "none";
		document.getElementById("video_two").style.display = "none";
		document.getElementById("video_three").style.display = "block";
		document.getElementById("video_four").style.display = "none";
	}
	if (video == "four"){
		document.getElementById("video_one").style.display = "none";
		document.getElementById("video_two").style.display = "none";
		document.getElementById("video_three").style.display = "none";
		document.getElementById("video_four").style.display = "block";
	}
}