var about_on = new Image;
about_on.src = "images/subNavAbout-on.gif";
var about_off = new Image;
about_off.src = "images/subNavAbout.gif";

var process_on = new Image;
process_on.src = "images/subNavProcess-on.gif";
var process_off = new Image;
process_off.src = "images/subNavProcess.gif";

var testimonials_on = new Image;
testimonials_on.src = "images/subNavTestimonials-on.gif";
var testimonials_off = new Image;
testimonials_off.src = "images/subNavTestimonials.gif";

var projects_on = new Image;
projects_on.src = "images/subNavProjects-on.gif";
var projects_off = new Image;
projects_off.src = "images/subNavProjects.gif";

var contact_on = new Image;
contact_on.src = "images/subNavContact-on.gif";
var contact_off = new Image;
contact_off.src = "images/subNavContact.gif";

var main_on = new Image;
main_on.src = "images/subNavMain-on.gif";
var main_off = new Image;
main_off.src = "images/subNavMain.gif";

function change(imgName) {
	imgOn = eval(imgName + "_on.src");
	document [imgName].src = imgOn;
}

function revert(imgName) {
	imgOff = eval(imgName + "_off.src");
	document [imgName].src = imgOff;
}