// image rollover variables

if (document.images) {

	nav_home = new Image();
  nav_home.src = "images/nav_home.gif";

	nav_home_over = new Image();
  nav_home_over.src = "images/nav_home_over.gif";

	nav_about = new Image();
  nav_about.src = "images/nav_about.gif";

	nav_about_over = new Image();
  nav_about_over.src = "images/nav_about_over.gif";

	nav_products = new Image();
  nav_products.src = "images/nav_products.gif";

	nav_products_over = new Image();
  nav_products_over.src = "images/nav_products_over.gif";

	nav_quotes = new Image();
  nav_quotes.src = "images/nav_quoteorder.gif";

	nav_quotes_over = new Image();
  nav_quotes_over.src = "images/nav_quoteorder_over.gif";

	nav_warranty = new Image();
  nav_warranty.src = "images/nav_warranty.gif";

	nav_warranty_over = new Image();
  nav_warranty_over.src = "images/nav_warranty_over.gif";

	nav_glossary = new Image();
  nav_glossary.src = "images/nav_glossary.gif";

	nav_glossary_over = new Image();
  nav_glossary_over.src = "images/nav_glossary_over.gif";
	
	nav_contact = new Image();
  nav_contact.src = "images/nav_contact.gif";

	nav_contact_over = new Image();
  nav_contact_over.src = "images/nav_contact_over.gif";

}

// image rollover function

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}