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link_about = new Image;
link_about_on = new Image;
link_conference = new Image;
link_conference_on = new Image;
link_session = new Image;
link_session_on = new Image;
link_exhibitor = new Image;
link_exhibitor_on = new Image;
link_grandrapids = new Image;
link_grandrapids_on = new Image;
link_hotel = new Image;
link_hotel_on = new Image;
link_home = new Image;
link_home_on = new Image;
link_directions = new Image;
link_directions_on = new Image;
link_nextconf = new Image;
link_nextconf_on = new Image;
link_leadership = new Image;
link_leadership_on = new Image;
link_pastconference = new Image;
link_pastconference_on = new Image;
link_futureconference = new Image;
link_futureconference_on = new Image;
link_2011conference = new Image;
link_2011conference_on = new Image;

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link_conference_on.src = "/images/link_conference_on.gif";
link_about.src = "/images/link_about.gif";
link_about_on.src = "/images/link_about_on.gif";
link_session.src = "/images/link_session.gif";
link_session_on.src = "/images/link_session_on.gif";
link_exhibitor.src = "/images/link_exhibitor.gif";
link_exhibitor_on.src = "/images/link_exhibitor_on.gif";
link_grandrapids.src = "/images/link_grandrapids.gif";
link_grandrapids_on.src = "/images/link_grandrapids_on.gif";
link_hotel.src = "/images/link_hotel.gif";
link_hotel_on.src = "/images/link_hotel_on.gif";
link_home.src = "/images/link_home.gif";
link_home_on.src = "/images/link_home_on.gif";
link_directions.src = "/images/link_directions.gif";
link_directions_on.src = "/images/link_directions_on.gif";
link_nextconf.src = "/images/link_nextconf.gif";
link_nextconf_on.src = "/images/link_nextconf_on.gif";
link_leadership.src = "/images/link_leadership.gif";
link_leadership_on.src = "/images/link_leadership_on.gif";
link_pastconference.src = "/images/link_pastconference.gif";
link_pastconference_on.src = "/images/link_pastconference_on.gif";
link_futureconference.src = "/images/link_futureconference.gif";
link_futureconference_on.src = "/images/link_futureconference_on.gif";
link_2011conference.src = "/images/link_2011conference.gif";
link_2011conference_on.src = "/images/link_2011conference_on.gif";

}

else {

link_about = "";
link_about_on = "";
link_conference = "";
link_conference_on = "";
link_session = "";
link_session_on = "";
link_exhibitor = "";
link_exhibitor_on = "";
link_grandrapids = "";
link_grandrapids_on = "";
link_hotel = "";
link_hotel_on = "";
link_home = "";
link_home_on = "";
link_directions = "";
link_directions_on = "";
link_nextconf = "";
link_nextconf_on = "";
link_leadership = "";
link_leadership_on = "";
link_pastconference = "";
link_pastconference_on = "";
link_futureconference = "";
link_futureconference_on = "";
link_2011conference = "";
link_2011conference_on = "";
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win = window.open(mypage, myname, winprops);

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}