var imageName;

if (document.images) {
  aboutovr  = new Image(161,27); aboutovr.src = "images/main/menu_about2.gif";
  aboutoff  = new Image(161,27); aboutoff.src = "images/main/menu_about1.gif";
  servicesovr   = new Image(161,34); servicesovr.src = "images/main/menu_services2.gif";
  servicesoff   = new Image(161,34); servicesoff.src = "images/main/menu_services1.gif";
  industriesovr = new Image(161,34); industriesovr.src = "images/main/menu_industries2.gif";
  industriesoff = new Image(161,34); industriesoff.src = "images/main/menu_industries1.gif";
  toolsovr  = new Image(161,31); toolsovr.src = "images/main/menu_tools2.gif";
  toolsoff  = new Image(161,31); toolsoff.src = "images/main/menu_tools1.gif";
  contactovr    = new Image(161,35); contactovr.src = "images/main/menu_contact2.gif";
  contactoff    = new Image(161,35); contactoff.src = "images/main/menu_contact1.gif";
  careersovr    = new Image(80,27); careersovr.src = "images/main/menu_careers2.gif";
  careersoff    = new Image(80,27); careersoff.src = "images/main/menu_careers1.gif";
  linksovr  = new Image(140,53); linksovr.src = "images/main/menu_links2.gif";
  linksoff  = new Image(140,53); linksoff.src = "images/main/menu_links1.gif";
  accountingovr = new Image(169,25); accountingovr.src = "images/main/menu_accounting2.gif"; 
  accountingoff = new Image(169,25); accountingoff.src = "images/main/menu_accounting1.gif"; 
  hccovr        = new Image(169,32); hccovr.src = "images/main/menu_hcc2.gif"; 
  hccoff        = new Image(169,32); hccoff.src = "images/main/menu_hcc1.gif"; 
  bfsovr        = new Image(169,24); bfsovr.src = "images/main/menu_bfs2.gif"; 
  bfsoff        = new Image(169,24); bfsoff.src = "images/main/menu_bfs1.gif"; 
}

function point( imageName ) {
  if ( document.images ) {
    document[ imageName ].src = eval(imageName + "ovr.src");
  }
}

function nopoint( imageName ) {
  if ( document.images ) {
    document[ imageName ].src = eval(imageName + "off.src");
  }
}