if (document.images) {
  img01 = new Image();
  img01.src = "assets/nav_company.gif";
  img012 = new Image();
  img012.src = "assets/nav_company_rollover.gif";
  img02 = new Image();
  img02.src = "assets/nav_repair.gif";
  img022 = new Image();
  img022.src = "assets/nav_repair_rollover.gif";
  img03 = new Image();
  img03.src = "assets/nav_portfolio.gif";
  img032 = new Image();
  img032.src = "assets/nav_portfolio_rollover.gif";
  img04 = new Image();
  img04.src = "assets/nav_catalog.gif";
  img042 = new Image();
  img042.src = "assets/nav_catalog_rollover.gif";
  img05 = new Image();
  img05.src = "assets/nav_resources.gif";
  img052 = new Image();
  img052.src = "assets/nav_resources_rollover.gif";
  img06 = new Image();
  img06.src = "assets/nav_contact.gif";
  img062 = new Image();
  img062.src = "assets/nav_contact_rollover.gif";

}
function OnImage(name) {
	if (document.images) {
		fullname = eval(name + "2");
		document[name].src = fullname.src;
	}
}
function OffImage(name) {
  if (document.images) {
    fullname = eval(name);
	if (fullname.complete) {
      document[name].src = fullname.src;
	}
  }
}