// Navigation
var navArrayOn = new Array();
var navArrayOff = new Array();
var navSelected = new Array();

var cnt = 0;

function loadNav(path, size, pre, sel) {

	var i;
	
	if (typeof(document.home) == 'undefined') {
		document.home = new Object();
		document.home.loadedImages = new Array();
	}
	
	for (i=1; i <= size; i++) {
	
		var key = pre + i;
	
		navArrayOn[key] = path + "/" + key + "H.gif";
		navArrayOff[key] = path + "/" + key + ".gif";
	
		document.home.loadedImages[cnt] = new Image();
		document.home.loadedImages[cnt++].src = navArrayOn[key];
		
		document.home.loadedImages[cnt] = new Image();
		document.home.loadedImages[cnt++].src = navArrayOff[key];
		
		navSelected[key] = (key == sel) ? true : false;
		
	}

	if (sel != '') {
		document[sel].src = navArrayOn[sel];
	}
}

function selectNav(imgName) {

	if (document.images) {
		document[imgName].src = navArrayOn[imgName];
	}

}

function unSelectNav(imgName) {

	if (document.images && navSelected[imgName] == false) {
		document[imgName].src = navArrayOff[imgName];
	}

}

function setStartSelected(imgName) {
	if (document.images) {
		navSelected[imgName] = true;
		document[imgName].src = navArrayOn[imgName];
	}
}

function setStartUnSelected(imgName) {
	if (document.images) {
		navSelected[imgName] = false;
		document[imgName].src = navArrayOff[imgName];
	}
}