function aimg(name)
{
  if (myImage[name])
  {
    if (myImage[name].complete)
    {
      document.images[name].src =  myImage[name].src;
    }
  }
}
function dimg(name)
{
  if (document.images[name])
  {
    if (document.images[name].complete)
    {
      path = 'img/' + name + '.gif';
      document.images[name].src = path
    }
  }
}
function act(name)
{
 aimg(name);
}
function dct(name)
{
 dimg(name);
}
function load()
{
 myImage = new Array(5);
 loadimg('pro');
 loadimg('news');
 loadimg('proj');
 loadimg('events');
 loadimg('publ');
 loadimg('office');
}
function loadimg(name)
{
 myImage[name] =  new Image();
 path = 'img/' + name + '_active.gif';
 myImage[name].src =  path;
}