//check if browser is capable, NS3+, IE4+

if( document.images )
{
   preload_image_object = new Image();
   // set image url
   urls = new Array(
                   "/images/arrow_hover.gif",
                   "/images/arrow_inactive.gif",
                   "/images/btn_apply_hover.png",
                   "/images/btn_apply_inactive.png",
                   "/images/btn_apply_here_hover.png",
                   "/images/btn_apply_here_inactive.png",
                   "/images/btn_back_hover.png",
                   "/images/btn_back_inactive.png",
                   "/images/btn_cancel_hover.png",
                   "/images/btn_cancel_inactive.png",
                   "/images/btn_click_hover.png",
                   "/images/btn_click_inactive.png",
                   "/images/btn_donate_hover.png",
                   "/images/btn_donate_inactive.png",
                   "/images/btn_email_hover.png",
                   "/images/btn_email_inactive.png",
                   "/images/btn_next_hover.png",
                   "/images/btn_next_inactive.png",
                   "/images/btn_reset_hover.png",
                   "/images/btn_reset_inactive.png",
                   "/images/btn_search_hover.png",
                   "/images/btn_search_inactive.png",
                   "/images/btn_submit_hover.png",
                   "/images/btn_submit_inactive.png",
                   "/images/btn_VCRback_hover.png",
                   "/images/btn_VCRback_inactive.png",
                   "/images/btn_VCRbeginning_hover.png",
                   "/images/btn_VCRbeginning_inactive.png",
                   "/images/btn_VCRend_hover.png",
                   "/images/btn_VCRend_inactive.png",
                   "/images/btn_VCRforward_hover.png",
                   "/images/btn_VCRforward_inactive.png",
                   "/images/btn_VCRpause_hover.png",
                   "/images/btn_VCRpause_inactive.png" )

   for( url in urls )
      preload_image_object.src = urls[ url ];

   function ImgOut( img )
   {
      img.src = img.src.replace(/hover/gi,"inactive");
   }

   function ImgOver( img )
   {
      img.src = img.src.replace(/inactive/gi,"hover");
   }
} //end of if document.images