var arNav=[["River Food","food"],["River Film","film",["pick of the week","pick"]],["River Fame","fame"],["River Celebrity","celebrity"],["River Drama","drama"],["About Us","about",["get listed","getlisted"]]];
var arHref = location.href.split("/");
var stSectionTitle = arHref[arHref.length-2];
stLinkPath = "../";

// if at a root page, change the URL of the links
if (document.getElementsByTagName("body")[0].className == "root") {stLinkPath = ""};

// create a nested list for primary and secondary navigation
elNav = document.getElementById("nav");
fnEmptyElement(elNav);

for (var i=0; i<arNav.length; i++) {

	elListItem = document.createElement("li");
	elLink = document.createElement("a");
	elLink.href = stLinkPath+arNav[i][1]+"/index.htm";
	elText = document.createTextNode(arNav[i][0]);
	elLink.appendChild(elText);
	elListItem.appendChild(elLink);

	// check to see if there is a secondary navigation list AND that it applies to the current section
	if (arNav[i][2] && arNav[i][1] == stSectionTitle) {
		elList = document.createElement("ul");

		for (var j=2; j<arNav[i].length; j++) {
			elListItemSecondary = document.createElement("li");
			elLink = document.createElement("a");
			elLink.href = arNav[i][j][1]+".htm";
			elText = document.createTextNode(arNav[i][j][0]);
			elLink.appendChild(elText);
			elListItemSecondary.appendChild(elLink);
			elList.appendChild(elListItemSecondary);
		}
		elListItem.appendChild(elList);
	}
	elNav.appendChild(elListItem);	
}