home_on = new Image();
portfolio_on = new Image();
about_on = new Image();
services_on = new Image();
easyedit_on = new Image();
contact_on = new Image();

home_on.src = "images/home_on.jpg";
portfolio_on.src = "images/portfolio_on.jpg";
about_on.src = "images/about_on.jpg";
services_on.src = "images/services_on.jpg";
easyedit_on.src = "images/easyedit_on.jpg";
contact_on.src = "images/contact_on.jpg";

home_off = new Image();
portfolio_off = new Image();
about_off = new Image();
services_off = new Image();
easyedit_off = new Image();
contact_off = new Image();

home_off.src = "images/home_off.jpg";
portfolio_off.src = "images/portfolio_off.jpg";
about_off.src = "images/about_off.jpg";
services_off.src = "images/services_off.jpg";
easyedit_off.src = "images/easyedit_off.jpg";
contact_off.src = "images/contact_off.jpg";

bullet1_on = new Image();
bullet1_on.src = "images/bullet_on.jpg";
bullet2_on = new Image();
bullet2_on.src = "images/bullet_on.jpg";
bullet3_on = new Image();
bullet3_on.src = "images/bullet_on.jpg";

bullet1_off = new Image();
bullet1_off.src = "images/bullet_off.jpg";
bullet2_off = new Image();
bullet2_off.src = "images/bullet_off.jpg";
bullet3_off = new Image();
bullet3_off.src = "images/bullet_off.jpg";

function swap(source, mode) {
   document[source].src = eval(source + "_" + mode + ".src");
}