imgHome = new Image();
imgHome.src = "graphics/b_home.gif";
imgHomeOn = new Image();
imgHomeOn.src = "graphics/bh_home.gif";

imgAbout = new Image();
imgAbout.src = "graphics/b_about.gif";
imgAboutOn = new Image();
imgAboutOn.src = "graphics/bh_about.gif";

imgProducts = new Image();
imgProducts.src = "graphics/b_products.gif";
imgProductsOn = new Image();
imgProductsOn.src = "graphics/bh_products.gif";

imgServices = new Image();
imgServices.src = "graphics/b_services.gif";
imgServicesOn = new Image();
imgServicesOn.src = "graphics/bh_services.gif";

imgHelp = new Image();
imgHelp.src = "graphics/b_help.gif";
imgHelpOn = new Image();
imgHelpOn.src = "graphics/bh_help.gif";

imgReward = new Image();
imgReward.src = "graphics/b_reward.gif";
imgRewardOn = new Image();
imgRewardOn.src = "graphics/bh_reward.gif";

imgContact = new Image();
imgContact.src = "graphics/b_contact.gif";
imgContactOn = new Image();
imgContactOn.src = "graphics/bh_contact.gif";

//---------------------------------------------------------------------
//
// img_act
//
//---------------------------------------------------------------------
function img_act(imageName, imageObject)
{   
   document.images[imageName].src = eval(imageObject);
}