if(document.images) 
{ 
 oldname = new Array;
 oldsrc = new Array;
 oldname[0] = "a0";
 oldindex = 0;
 oldsrc[0] = "/images_site/inside/hdr05.gif";
 

 button = new Array;
 button[0] = new Array(9);
 
 
 button[0][0] = new Image();
 button[0][0].src = "/images_site/inside/hdr05.gif";

 button[0][1] = new Image();
 button[0][1].src = "/images_site/inside/nav_about_over.gif";
 button[0][2] = new Image();
 button[0][2].src = "/images_site/inside/nav_customframing_over.gif";
 button[0][3] = new Image();
 button[0][3].src = "/images_site/inside/nav_fineartprints_over.gif";
 button[0][4] = new Image();
 button[0][4].src = "/images_site/inside/nav_galleryartists_over.gif";
 button[0][5] = new Image();
 button[0][5].src = "/images_site/inside/nav_exhibitions_over.gif";
 button[0][6] = new Image();
 button[0][6].src = "/images_site/inside/nav_eventscalendar_over.gif";
 button[0][7] = new Image();
 button[0][7].src = "/images_site/inside/nav_contact_us_over.gif";
button[0][8] = new Image();
 button[0][8].src = "/images_site/inside/nav_whatsnew_over.gif";
 button[0][9] = new Image();
 button[0][9].src = "/images_site/inside/nav_otherworksavailable_over.gif";
}

function on(index) {
  if(document.images){
//  off();
  oldname[0]='a' + index;
  
  oldsrc[0]=document[oldname[0]].src;
  
  document[oldname[0]].src=button[0][index].src;  
  
}
}

function off() {
  if(document.images){
  document[oldname[0]].src = oldsrc[0];  
  }
}