//Create array of nav bar "on" images

if (document.images) {

	nav1 = new Image();

	nav1.src="images/joinnoworange.gif";

}

//Create array of nav bar "off" images

if (document.images) {

	nav1off = new Image();

	nav1off.src="images/joinnowbluetest.gif";

	}

//function to activate images

function imgOn(imgName) {

	if (document.images) {

		document[imgName].src = eval(imgName + ".src");

	}

}

//function to deactivate images

function imgOff(navName) {

	if (document.images) {

		document[navName].src = eval(navName + "off.src");

	}

}