if (document.images) {
newsoff=new Image();
newsoff.src= "images/menu/newsoff.gif";
newson=new Image();
newson.src= "images/menu/newson.gif";
eventoff=new Image();
eventoff.src= "images/menu/eventoff.gif";
eventon=new Image();
eventon.src= "images/menu/eventon.gif";
contactoff=new Image();
contactoff.src= "images/menu/contactoff.gif";
contacton=new Image();
contacton.src= "images/menu/contacton.gif";
attivitaoff=new Image();
attivitaoff.src= "images/menu/attivitaoff.gif";
attivitaon=new Image();
attivitaon.src= "images/menu/attivitaon.gif";

topleftoff=new Image();
topleftoff.src= "images/homecollage2010/topleftoff.gif";
toplefton=new Image();
toplefton.src= "images/homecollage2010/toplefton.gif";
toprightoff=new Image();
toprightoff.src= "images/homecollage2010/toprightoff.gif";
toprighton=new Image();
toprighton.src= "images/homecollage2010/toprighton.gif";
leftoff=new Image();
leftoff.src= "images/homecollage2010/leftoff.gif";
lefton=new Image();
lefton.src= "images/homecollage2010/lefton.gif";
rightoff=new Image();
rightoff.src= "images/homecollage2010/rightoff.gif";
righton=new Image();
righton.src= "images/homecollage2010/righton.gif";
bottomleftoff=new Image();
bottomleftoff.src= "images/homecollage2010/bottomleftoff.gif";
bottomlefton=new Image();
bottomlefton.src= "images/homecollage2010/bottomlefton.gif";
bottomrightoff=new Image();
bottomrightoff.src= "images/homecollage2010/bottomrightoff.gif";
bottomrighton=new Image();
bottomrighton.src= "images/homecollage2010/bottomrighton.gif";

}

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