var poweringWhoButtonOn             = new Image();
var poweringWhoButtonOff            = new Image();
var poweringWhatButtonOn            = new Image();
var poweringWhatButtonOff           = new Image();
var poweringRightButtonOn           = new Image();
var poweringRightButtonOff          = new Image();
var poweringSnapshotButtonOn        = new Image();
var poweringSnapshotButtonOff       = new Image();
var poweringCareersButtonOn         = new Image();
var poweringCareersButtonOff        = new Image();
var poweringNewsButtonOn            = new Image();
var poweringNewsButtonOff           = new Image();

var workingPracticalButtonOn        = new Image();
var workingPracticalButtonOff       = new Image();
var workingProvenButtonOn           = new Image();
var workingProvenButtonOff          = new Image();
var workingPeopleButtonOn           = new Image();
var workingPeopleButtonOff          = new Image();

var servicesWebDevButtonOn          =  new Image();
var servicesWebDevButtonOff         =  new Image();
var servicesELearningButtonOn       =  new Image();
var servicesELearningButtonOff      =  new Image();
var servicesEPerformanceButtonOn    =  new Image();
var servicesEPerformanceButtonOff   =  new Image();
var servicesChannelPlusButtonOn     =  new Image();
var servicesChannelPlusButtonOff    =  new Image();

var innovationEharmonyButtonOn      = new Image();
var innovationEharmonyButtonOff     = new Image();
var innovationEgnButtonOn           = new Image();
var innovationEgnButtonOff          = new Image();
var innovationDemiButtonOn          = new Image();
var innovationDemiButtonOff         = new Image();
var innovationUniversalButtonOn     = new Image();
var innovationUniversalButtonOff    = new Image();
var innovationXeroxButtonOn         = new Image();
var innovationXeroxButtonOff        = new Image();
var innovationDigitalButtonOn       = new Image();
var innovationDigitalButtonOff      = new Image();
var innovationHPButtonOn            = new Image();
var innovationHPButtonOff           = new Image();
var innovationPacificareButtonOn    = new Image();
var innovationPacificareButtonOff   = new Image();
var innovationClientButtonOn        = new Image();
var innovationClientButtonOff       = new Image();
 
function preloadSubMenu( imageDir )
{
  poweringWhoButtonOn.src           = imageDir + "nav_powering_who_on.gif";
  poweringWhoButtonOff.src          = imageDir + "nav_powering_who_off.gif";
  poweringWhatButtonOn.src          = imageDir + "nav_powering_what_on.gif";
  poweringWhatButtonOff.src         = imageDir + "nav_powering_what_off.gif";
  poweringRightButtonOn.src         = imageDir + "nav_powering_right_on.gif";
  poweringRightButtonOff.src        = imageDir + "nav_powering_right_off.gif";
  poweringSnapshotButtonOn.src      = imageDir + "nav_powering_snapshot_on.gif";
  poweringSnapshotButtonOff.src     = imageDir + "nav_powering_snapshot_off.gif";
  poweringCareersButtonOn.src       = imageDir + "nav_powering_careers_on.gif";
  poweringCareersButtonOff.src      = imageDir + "nav_powering_careers_off.gif";
  poweringNewsButtonOn.src          = imageDir + "nav_powering_news_on.gif";
  poweringNewsButtonOff.src         = imageDir + "nav_powering_news_off.gif";  

  workingPracticalButtonOn.src      = imageDir + "nav_working_practical_on.gif";
  workingPracticalButtonOff.src     = imageDir + "nav_working_practical_off.gif";
  workingProvenButtonOn.src         = imageDir + "nav_working_proven_on.gif";
  workingProvenButtonOff.src        = imageDir + "nav_working_proven_off.gif";
  workingPeopleButtonOn.src         = imageDir + "nav_working_people_on.gif";
  workingPeopleButtonOff.src        = imageDir + "nav_working_people_off.gif";
  
  servicesWebDevButtonOn.src        =  imageDir + "nav_services_web_on.gif";
  servicesWebDevButtonOff.src       =  imageDir + "nav_services_web_off.gif";
  servicesELearningButtonOn.src     =  imageDir + "nav_services_elearning_on.gif";
  servicesELearningButtonOff.src    =  imageDir + "nav_services_elearning_off.gif";
  servicesEPerformanceButtonOn.src  =  imageDir + "nav_services_eperformance_on.gif";
  servicesEPerformanceButtonOff.src =  imageDir + "nav_services_eperformance_off.gif";
  servicesChannelPlusButtonOn.src   =  imageDir + "nav_services_channel_on.gif";
  servicesChannelPlusButtonOff.src  =  imageDir + "nav_services_channel_off.gif";

  innovationEharmonyButtonOn.src    = imageDir + "nav_innovation_eharmony_on.gif";
  innovationEharmonyButtonOff.src   = imageDir + "nav_innovation_eharmony_off.gif";
  innovationEgnButtonOn.src         = imageDir + "nav_innovation_egn_on.gif";
  innovationEgnButtonOff.src        = imageDir + "nav_innovation_egn_off.gif";
  innovationDemiButtonOn.src        = imageDir + "nav_innovation_demi_on.gif";
  innovationDemiButtonOff.src       = imageDir + "nav_innovation_demi_off.gif";
  innovationUniversalButtonOn.src   = imageDir + "nav_innovation_univers_on.gif";
  innovationUniversalButtonOff.src  = imageDir + "nav_innovation_univers_off.gif";
  innovationXeroxButtonOn.src       = imageDir + "nav_innovation_xerox_on.gif";
  innovationXeroxButtonOff.src      = imageDir + "nav_innovation_xerox_off.gif";
  innovationDigitalButtonOn.src     = imageDir + "nav_innovation_digital_on.gif";
  innovationDigitalButtonOff.src    = imageDir + "nav_innovation_digital_off.gif";
  innovationHPButtonOn.src          = imageDir + "nav_innovation_hp_on.gif";
  innovationHPButtonOff.src         = imageDir + "nav_innovation_hp_off.gif";
  innovationPacificareButtonOn.src  = imageDir + "nav_innovation_pacificare_on.gif";
  innovationPacificareButtonOff.src = imageDir + "nav_innovation_pacificare_off.gif";
  innovationClientButtonOn.src      = imageDir + "nav_innovation_client_on.gif";
  innovationClientButtonOff.src     = imageDir + "nav_innovation_client_off.gif";
  
} // end preloadSubMenu