if (document.images) {
  var Homec = new Image();
  Homec.src = "Images/Homec.gif";
  var Homeb = new Image();
  Homeb.src = "Images/Homeb.gif";
  var Newc = new Image();
  Newc.src = "Images/Newc.gif";
  var Newb = new Image();
  Newb.src = "Images/Newb.gif";
  var Aboutc = new Image();
  Aboutc.src = "Images/Aboutc.gif";
  var Aboutb = new Image();
  Aboutb.src = "Images/Aboutb.gif";
  var Memberc = new Image();
  Memberc.src = "Images/Memberc.gif";
  var Memberb = new Image();
  Memberb.src = "Images/Memberb.gif";
  var Seminarc = new Image();
  Seminarc.src = "Images/Seminarc.gif";
  var Seminarb = new Image();
  Seminarb.src = "Images/Seminarb.gif";
  var Contactc = new Image();
  Contactc.src = "Images/Contactc.gif";
  var Contactb = new Image();
  Contactb.src = "Images/Contactb.gif";
  var Trainc = new Image();
  Trainc.src = "Images/Trainc.gif";
  var Trainb = new Image();
  Trainb.src = "Images/Trainb.gif";
  var cpmemc = new Image();
  cpmemc.src = "Images/c_p_memc.gif";
  var cpmemb = new Image();
  cpmemb.src = "Images/c_p_memb.gif";
  var partnersc = new Image();
  partnersc.src = "Images/partnersc.gif";
  var partnersb = new Image();
  partnersb.src = "Images/partnersb.gif";
  var testc = new Image();
  testc.src = "Images/testc.gif";
  var testb = new Image();
  testb.src = "Images/testb.gif";
  var storec = new Image();
  storec.src = "Images/storec.gif";
  var storeb = new Image();
  storeb.src = "Images/storeb.gif";
}

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

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