if (document.images) {
   interestsh_on = new Image();
   interestsh_on.src = "images/interests_home_on.gif";
   interestsh_off = new Image();
   interestsh_off.src = "images/interests_home_off.gif";
   ethnich_on = new Image();
   ethnich_on.src = "images/ethnic_home_on.gif";
   ethnich_off = new Image();
   ethnich_off.src = "images/ethnic_home_off.gif";
   lifestylesh_on = new Image();
   lifestylesh_on.src = "images/lifestyles_home_on.gif";
   lifestylesh_off = new Image();
   lifestylesh_off.src = "images/lifestyles_home_off.gif";
   neighborhoodsh_on = new Image();
   neighborhoodsh_on.src = "images/neighborhoods_home_on.gif";
   neighborhoodsh_off = new Image();
   neighborhoodsh_off.src = "images/neighborhoods_home_off.gif";
   visitorh_on = new Image();
   visitorh_on.src = "images/visitor_home_on.gif";
   visitorh_off = new Image();
   visitorh_off.src = "images/visitor_home_off.gif";
   abouth_on = new Image();
   abouth_on.src = "images/about_home_on.gif";
   abouth_off = new Image();
   abouth_off.src = "images/about_home_off.gif";
   funh_on = new Image();
   funh_on.src = "images/fun_home_on.gif";
   funh_off = new Image();
   funh_off.src = "images/fun_home_off.gif";

}

function swapImage(imgName,newImage) {
   if (document.images) {
      eval('document.' + imgName + '.src = ' + newImage + '.src');
   }
}