if (document.images) {



  img_nav_sub2_1on = new Image();

  img_nav_sub2_1on.src = "_images/nav_sub2_1over.gif";

  img_nav_sub2_2on = new Image();

  img_nav_sub2_2on.src = "_images/nav_sub2_2over.gif"; 

  img_nav_sub2_3on = new Image();

  img_nav_sub2_3on.src = "_images/nav_sub2_3over.gif";

  img_nav_sub2_4on = new Image();

  img_nav_sub2_4on.src = "_images/nav_sub2_4over.gif";

  img_nav_sub2_5on = new Image();

  img_nav_sub2_5on.src = "_images/nav_sub2_5over.gif";

  img_nav_sub2_6on = new Image();

  img_nav_sub2_6on.src = "_images/nav_sub2_6over.gif";

  img_nav_sub2_7on = new Image();

  img_nav_sub2_7on.src = "_images/nav_sub2_7over.gif";

  img_nav_sub2_8on = new Image();

  img_nav_sub2_8on.src = "_images/nav_sub2_8over.gif";

  img_nav_sub2_9on = new Image();

  img_nav_sub2_9on.src = "_images/nav_sub2_9over.gif";

  

  img_nav_sub2_1off = new Image();

  img_nav_sub2_1off.src = "_images/nav_sub2_1off.gif";

  img_nav_sub2_2off = new Image();

  img_nav_sub2_2off.src = "_images/nav_sub2_2off.gif";

  img_nav_sub2_3off = new Image();

  img_nav_sub2_3off.src = "_images/nav_sub2_3off.gif";

  img_nav_sub2_4off = new Image();

  img_nav_sub2_4off.src = "_images/nav_sub2_4off.gif";

  img_nav_sub2_5off = new Image();

  img_nav_sub2_5off.src = "_images/nav_sub2_5off.gif";

  img_nav_sub2_6off = new Image();

  img_nav_sub2_6off.src = "_images/nav_sub2_6off.gif";

  img_nav_sub2_7off = new Image();

  img_nav_sub2_7off.src = "_images/nav_sub2_7off.gif";

  img_nav_sub2_8off = new Image();

  img_nav_sub2_8off.src = "_images/nav_sub2_8off.gif";

  img_nav_sub2_9off = new Image();

  img_nav_sub2_9off.src = "_images/nav_sub2_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");

    }

  }

}