function highlightSideNav() {
	
	var navbar = document.getElementById('sidenav');
	var nodes = navbar.getElementsByTagName('li');
	var pageurl = document.URL.substring(document.URL.lastIndexOf('/') + 1);
	
	for(var n in nodes) {
		if(nodes[n].innerHTML && pageurl.length > 0) {
			// indexOf returns -1 if string being looked for is not found.
			// so, if the innerHTML of the node does contain the pageurl,
			// give the node the class "active"
			if(nodes[n].innerHTML.indexOf(pageurl) != -1) {
				nodes[n].className = "active";
			}
		}
	}
}

$(document).ready(function() {
	highlightSideNav()
});