m_about_on = new Image();
m_about_on.src = "/home/images/m_about_h.jpg";
m_about_off = new Image();
m_about_off.src = "/home/images/m_about_n.jpg";

m_capabilities_on = new Image();
m_capabilities_on.src = "/home/images/m_capabilities_h.jpg";
m_capabilities_off = new Image();
m_capabilities_off.src = "/home/images/m_capabilities_n.jpg";

m_portfolio_on = new Image();
m_portfolio_on.src = "/home/images/m_portfolio_h.jpg";
m_portfolio_off = new Image();
m_portfolio_off.src = "/home/images/m_portfolio_n.jpg";

m_tools_on = new Image();
m_tools_on.src = "/home/images/m_tools_h.jpg";
m_tools_off = new Image();
m_tools_off.src = "/home/images/m_tools_n.jpg";

m_contacts_on = new Image();
m_contacts_on.src = "/home/images/m_contacts_h.jpg";
m_contacts_off = new Image();
m_contacts_off.src = "/home/images/m_contacts_n.jpg";

function img_on(imgName) {
   imgOn = eval(imgName + "_on.src");
   document [imgName].src = imgOn;
}

function img_off(imgName) {
   imgOff = eval(imgName + "_off.src");
   document [imgName].src = imgOff;
}