if (document.images) {



  img_nav_footer_1on = new Image();

  img_nav_footer_1on.src = "_images/nav_footer_1on.gif";

  img_nav_footer_2on = new Image();

  img_nav_footer_2on.src = "_images/nav_footer_2on.gif"; 

  img_nav_footer_3on = new Image();

  img_nav_footer_3on.src = "_images/nav_footer_3on.gif";

  img_nav_footer_4on = new Image();

  img_nav_footer_4on.src = "_images/nav_footer_4on.gif";

  img_nav_footer_5on = new Image();

  img_nav_footer_5on.src = "_images/nav_footer_5on.gif";

  img_nav_footer_6on = new Image();

  img_nav_footer_6on.src = "_images/nav_footer_6on.gif";

  img_nav_footer_7on = new Image();

  img_nav_footer_7on.src = "_images/nav_footer_7on.gif";

  img_nav_footer_8on = new Image();

  img_nav_footer_8on.src = "_images/nav_footer_8on.gif";

  img_nav_footer_9on = new Image();

  img_nav_footer_9on.src = "_images/nav_footer_9on.gif";

  

  img_nav_footer_1off = new Image();

  img_nav_footer_1off.src = "_images/nav_footer_1off.gif";

  img_nav_footer_2off = new Image();

  img_nav_footer_2off.src = "_images/nav_footer_2off.gif";

  img_nav_footer_3off = new Image();

  img_nav_footer_3off.src = "_images/nav_footer_3off.gif";

  img_nav_footer_4off = new Image();

  img_nav_footer_4off.src = "_images/nav_footer_4off.gif";

  img_nav_footer_5off = new Image();

  img_nav_footer_5off.src = "_images/nav_footer_5off.gif";

  img_nav_footer_6off = new Image();

  img_nav_footer_6off.src = "_images/nav_footer_6off.gif";

  img_nav_footer_7off = new Image();

  img_nav_footer_7off.src = "_images/nav_footer_7off.gif";

  img_nav_footer_8off = new Image();

  img_nav_footer_8off.src = "_images/nav_footer_8off.gif";

  img_nav_footer_9off = new Image();

  img_nav_footer_9off.src = "_images/nav_footer_9off.gif";

  

}



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");

    }

  }

}