var pageID;


function setID(id)
{
	var sPath = window.location.pathname;
	//var sPage = sPath.substring(sPath.lastIndexOf('\\') + 1);
	var sPage = sPath.substring(sPath.lastIndexOf('/') + 1).split(".html").join("");
	if(sPage == "index"  ||  sPage == "") sPage = "home";
	
	sPage = sPage.split("-")[0]; //seperates names
	
	pageID = sPage;
	
	setDownState(pageID);
	document.getElementById("nav-"+pageID).removeAttribute("href");
}


function setDownState(id)
{
	var full_ID = 'nav-img-'+id;
	var img = document.getElementById(full_ID);
	
	img.src = "_images/nav-down_" + id + ".gif";
}


function setUpState(id)
{
	var full_ID = 'nav-img-'+id;
	var img = document.getElementById(full_ID);
	
	img.src = "_images/nav-up_" + id + ".gif";
}


function navRollOver(id)
{
	if(id != pageID) setDownState(id);
}


function navRollOut(id)
{
	if(id != pageID) setUpState(id);
}