function preloadImages() {
  if (document.images) {

    aboutpaulon = new Image();
    aboutpaulon.src = "images/aboutpaulbutton.gif";
    aboutpauloff = new Image();
    aboutpauloff.src = "images/aboutpaulbutton2.gif";

    listingson = new Image();
    listingson.src = "images/listingsbutton.gif";
    listingsoff = new Image();
    listingsoff.src = "images/listingsbutton2.gif";

    featureon = new Image();
    featureon.src = "images/feature1.gif";
    featureoff = new Image();
    featureoff.src = "images/feature2.gif";

    relocationson = new Image();
    relocationson.src = "images/relocationsbutton.gif";
    relocationsoff = new Image();
    relocationsoff.src = "images/relocationsbutton2.gif";

    evaluationson = new Image();
    evaluationson.src = "images/evaluationsbutton.gif";
    evaluationsoff = new Image();
    evaluationsoff.src = "images/evaluationsbutton2.gif";

    newsletterson = new Image();
    newsletterson.src = "images/newslettersbutton.gif";
    newslettersoff = new Image();
    newslettersoff.src = "images/newslettersbutton2.gif";

    aroundcalgaryon = new Image();
    aroundcalgaryon.src = "images/aroundcalgarybutton.gif";
    aroundcalgaryoff = new Image();
    aroundcalgaryoff.src = "images/aroundcalgarybutton2.gif";

    communitieson = new Image();
    communitieson.src = "images/communitiesbutton.gif";
    communitiesoff = new Image();
    communitiesoff.src = "images/communitiesbutton2.gif";

    clientssayon = new Image();
    clientssayon.src = "images/clientssaybutton.gif";
    clientssayoff = new Image();
    clientssayoff.src = "images/clientssaybutton2.gif";

    seniorson = new Image();
    seniorson.src = "images/seniorsbutton.gif";
    seniorsoff = new Image();
    seniorsoff.src = "images/seniorsbutton2.gif";

    contactmeon = new Image();
    contactmeon.src = "images/contactmebutton.gif";
    contactmeoff = new Image();
    contactmeoff.src = "images/contactmebutton2.gif";

    homeon = new Image();
    homeon.src = "images/homebutton.gif";
    homeoff = new Image();
    homeoff.src = "images/homebutton2.gif";

    footeron = new Image();
    footeron.src = "images/footerbutton.gif";
    footeroff = new Image();
    footeroff.src = "images/footerbutton2.gif";

  }
}

function imgOn(imgName) {
  if (document.images) {
    document[imgName].src = "images/" + imgName + "button2.gif";
  }
}

function imgOff(imgName) {
  if (document.images) {
    document[imgName].src = "images/" + imgName + "button.gif";
  }
}