function size() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {

    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement &&
      ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {

    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {

    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
    document.write("<img src=/library/images/pixel.gif width=\"1\" height="+(myHeight-275)+">")
}