if( document.images )
{
  productOff = new Image(244,29) ;
  productOff.src ="/images/roll_products_off.gif";  
  productOn = new Image(244,29) ;  
  productOn.src = "/images/roll_products_on.gif";
   
  supportOff = new Image(244,29) ;
  supportOff.src ="/images/roll_support_off.gif";  
  supportOn = new Image(244,29) ;  
  supportOn.src = "/images/roll_support_on.gif"; 

  companyOff = new Image(244,29) ;
  companyOff.src ="/images/roll_company_off.gif";  
  companyOn = new Image(244,29) ;  
  companyOn.src = "/images/roll_company_on.gif"; 

  solutionsOff = new Image(244,29) ;
  solutionsOff.src ="/images/roll_solutions_off.gif";  
  solutionsOn = new Image(244,29) ;  
  solutionsOn.src = "/images/roll_solutions_on.gif";   
  
  contactsOff = new Image(244,29) ;
  contactsOff.src ="/images/roll_contacts_off.gif";  
  contactsOn = new Image(244,29) ;  
  contactsOn.src = "/images/roll_contacts_on.gif";   

  storeOff = new Image(244,29) ;
  storeOff.src ="/images/roll_store_off.gif";  
  storeOn = new Image(244,29) ;  
  storeOn.src = "/images/roll_store_on.gif";   
 
}