if (document.images) {

  var about = new Image();
  about.src = "/ui/menu_about.gif";
  var about_over = new Image();
  about_over.src = "/ui/menu_about_over.gif";  
  var about_active = new Image();
  about_active.src = "/ui/menu_about_active.gif";    

  var production = new Image();
  production.src = "/ui/menu_production.gif";
  var production_over = new Image();
  production_over.src = "/ui/menu_production_over.gif";  
  var production_active = new Image();
  production_active.src = "/ui/menu_production_active.gif";    
  
  
  var pricelist = new Image();
  pricelist.src = "/ui/menu_pricelist.gif";
  var pricelist_over = new Image();
  pricelist_over.src = "/ui/menu_pricelist_over.gif";    
  var pricelist_active = new Image();
  pricelist_active.src = "/ui/menu_pricelist_active.gif";      
 
  
  var documents = new Image();
  documents.src = "/ui/menu_documents.gif";
  var documents_over = new Image();
  documents_over.src = "/ui/menu_documents_over.gif";      
  var documents_active = new Image();
  documents_active.src = "/ui/menu_documents_active.gif";        
  
  
  var contacts = new Image();
  contacts.src = "/ui/menu_contacts.gif";
  var contacts_over = new Image();
  contacts_over.src = "/ui/menu_contacts_over.gif";        
  var contacts_active = new Image();
  contacts_active.src = "/ui/menu_contacts_active.gif";          
     
  
	var partners = new Image();
  partners.src = "/ui/menu_partners.gif";
  var partners_over = new Image();
  partners_over.src = "/ui/menu_partners_over.gif";            
  var partners_active = new Image();
  partners_active.src = "/ui/menu_partners_active.gif";           

}

function actMenuItem(imgName) {
  act(imgName);
}

function inactMenuItem(imgName) {
  inact(imgName);
}

function act(imgName) {
  if (document.images)
    document.images[imgName].src = eval(imgName + "_over.src");
}

function inact(imgName) {
  if (document.images) {
			if (document.images[imgName].className) {
				document.images[imgName].src = eval(imgName + "_active.src");
			} else {
    		document.images[imgName].src = eval(imgName + ".src");
			}
	}
}