if (document.images) 
{
mnav1on = new Image;
mnav1on.src = "/images/mnav_corporate_F2.gif";
mnav2on = new Image;
mnav2on.src = "/images/mnav_services_F2.gif";
mnav3on = new Image;
mnav3on.src = "/images/mnav_opportunities_F2.gif";
mnav4on = new Image;
mnav4on.src = "/images/mnav_whatnew_F2.gif";
mnav5on = new Image;
mnav5on.src = "/images/mnav_project_F2.gif";
mnav6on = new Image;
mnav6on.src = "/images/mnav_contact_F2.gif";

mnav1off = new Image;
mnav1off.src = "/images/mnav_corporate.gif";
mnav2off = new Image;
mnav2off.src = "/images/mnav_services.gif";
mnav3off = new Image;
mnav3off.src = "/images/mnav_opportunities.gif";
mnav4off = new Image;
mnav4off.src = "/images/mnav_whatnew.gif";
mnav5off = new Image;
mnav5off.src = "/images/mnav_project.gif";
mnav6off = new Image;
mnav6off.src = "/images/mnav_contact.gif";

arrow0 = new Image;
arrow0.src = "/images/arrow_0.gif";
arrow1 = new Image;
arrow1.src = "/images/arrow_1.gif";
arrow2 = new Image;
arrow2.src = "/images/arrow_2.gif";
arrow3 = new Image;
arrow3.src = "/images/arrow_3.gif";
arrow4 = new Image;
arrow4.src = "/images/arrow_4.gif";
arrow5 = new Image;
arrow5.src = "/images/arrow_5.gif";
arrow6 = new Image;
arrow6.src = "/images/arrow_6.gif";
}

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

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