home_off = new Image();
home_off.src = "images/home_off.png";
home_on = new Image();
home_on.src = "images/home_on.png";

about_off = new Image();
about_off.src = "images/about_off.png";
about_on = new Image();
about_on.src = "images/about_on.png";

services_off = new Image();
services_off.src = "images/services_off.png";
services_on = new Image();
services_on.src = "images/services_on.png";

work_off = new Image();
work_off.src = "images/work_off.png";
work_on = new Image();
work_on.src = "images/work_on.png";

associations_off = new Image();
associations_off.src = "images/associations_off.png";
associations_on = new Image();
associations_on.src = "images/associations_on.png";

news_off = new Image();
news_off.src = "images/news_off.png";
news_on = new Image();
news_on.src = "images/news_on.png";

contact_off = new Image();
contact_off.src = "images/contact_off.png";
contact_on = new Image();
contact_on.src = "images/contact_on.png";

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

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