function imageSwap(i_zImgName, i_zImgNewSrc){
	if (document.images){
		document.images[i_zImgName].src = i_zImgNewSrc;
	};
};

var img08off = new Image();
	img08off.src = "images/nav_08.gif"
var img08on = new Image();
	img08on.src = "images/nav_08a.gif"
	
var img07off = new Image();
	img07off.src = "images/nav_07.gif"
var img07on = new Image();
	img07on.src = "images/nav_07a.gif"
	
var img06off = new Image();
	img06off.src = "images/nav_06.gif"
var img06on = new Image();
	img06on.src = "images/nav_06a.gif"

var img05off = new Image();
	img05off.src = "images/nav_05.gif"
var img05on = new Image();
	img05on.src = "images/nav_05a.gif"	
	
var img04off = new Image();
	img04off.src = "images/nav_04.gif"
var img04on = new Image();
	img04on.src = "images/nav_04a.gif"
	
var img03off = new Image();
	img03off.src = "images/nav_03.gif"
var img03on = new Image();
	img03on.src = "images/nav_03a.gif"
	
var img02off = new Image();
	img02off.src = "images/nav_02.gif"
var img02on = new Image();
	img02on.src = "images/nav_02a.gif"
	
var img01off = new Image();
	img01off.src = "images/nav_01.gif"
var img01on = new Image();
	img01on.src = "images/nav_01a.gif"