function RandNum(max) {
  key = Math.floor(Math.random() * max);
  return key;
}
function RandomPicture() {

  images = new Array( 6 );

  images[0] = "<img src='images/layout/home/02.gif' alt='Welcome to Veridus.com'>";
  images[1] = "<img src='images/layout/home/01.gif' alt='Welcome to Veridus.com'>";
  images[2] = "<img src='images/layout/home/03.gif' alt='Welcome to Veridus.com'>";
  images[3] = "<img src='images/layout/home/04.gif' alt='Welcome to Veridus.com'>";
  images[4] = "<img src='images/layout/home/05.gif' alt='Welcome to Veridus.com'>";
  images[5] = "<img src='images/layout/home/06.gif' alt='Welcome to Veridus.com'>";

  key = RandNum( images.length );
  document.write( images[ key ] );
}

  RandomPicture()