if (document.images) {
communitiesoff=new Image();
communitiesoff.src= "images/home/communitiesoff.gif";
communitieson=new Image();
communitieson.src= "images/home/communitieson.gif";
registeroff=new Image();
registeroff.src= "images/home/registeroff.gif";
registeron=new Image();
registeron.src= "images/home/registeron.gif";
aboutoff=new Image();
aboutoff.src= "images/home/aboutoff.gif";
abouton=new Image();
abouton.src= "images/home/abouton.gif";
locationmapoff=new Image();
locationmapoff.src= "images/home/locationmapoff.gif";
locationmapon=new Image();
locationmapon.src= "images/home/locationmapon.gif";

}

function imageOn (imagename){
  document[imagename].src=eval(imagename+"on.src");
 }
function imageOff (imagename){
  document[imagename].src=eval(imagename+"off.src");
 }