if (document.images) {
l_mainon = new Image();
l_mainon.src = "/images/navigation/l_main_r.gif";
l_mainoff = new Image();
l_mainoff.src = "/images/navigation/l_main_n.gif";
tn_loginon = new Image();
tn_loginon.src = "/images/navigation/tn_login_r.gif";
tn_loginoff = new Image();
tn_loginoff.src = "/images/navigation/tn_login_n.gif";
tn_solutionson = new Image();
tn_solutionson.src = "/images/navigation/tn_solutions_r.gif";
tn_solutionsoff = new Image();
tn_solutionsoff.src = "/images/navigation/tn_solutions_n.gif";
tn_companyon = new Image();
tn_companyon.src = "/images/navigation/tn_company_r.gif";
tn_companyoff = new Image();
tn_companyoff.src = "/images/navigation/tn_company_n.gif";
tn_partnerson = new Image();
tn_partnerson.src = "/images/navigation/tn_partners_r.gif";
tn_partnersoff = new Image();
tn_partnersoff.src = "/images/navigation/tn_partners_n.gif";
tn_storeon = new Image();
tn_storeon.src = "/images/navigation/tn_store_r.gif";
tn_storeoff = new Image();
tn_storeoff.src = "/images/navigation/tn_store_n.gif";
tn_contacton = new Image();
tn_contacton.src = "/images/navigation/tn_contact_r.gif";
tn_contactoff = new Image();
tn_contactoff.src = "/images/navigation/tn_contact_n.gif";
tn_pricingon = new Image();
tn_pricingon.src = "/images/navigation/tn_pricing_r.gif";
tn_pricingoff = new Image();
tn_pricingoff.src = "/images/navigation/tn_pricing_n.gif";
tn_signupon = new Image();
tn_signupon.src = "/images/navigation/tn_signup_r.gif";
tn_signupoff = new Image();
tn_signupoff.src = "/images/navigation/tn_signup_n.gif";
zn_mainon = new Image();
zn_mainon.src = "/images/navigation/zn_main_r.gif";
zn_mainoff = new Image();
zn_mainoff.src = "/images/navigation/zn_main_n.gif";
zn_agenton = new Image();
zn_agenton.src = "/images/navigation/zn_agent_r.gif";
zn_agentoff = new Image();
zn_agentoff.src = "/images/navigation/zn_agent_n.gif";
zn_brokeron = new Image();
zn_brokeron.src = "/images/navigation/zn_broker_r.gif";
zn_brokeroff = new Image();
zn_brokeroff.src = "/images/navigation/zn_broker_n.gif";
zn_reselleron = new Image();
zn_reselleron.src = "/images/navigation/zn_reseller_r.gif";
zn_reselleroff = new Image();
zn_reselleroff.src = "/images/navigation/zn_reseller_n.gif";
}


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

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