function resizepage()
{
  var direction=event.keyCode
  switch(direction){
    case 39:
      window.resizeBy(10, 0);
      window.resizeBy(0, 0);
      break
    case 37:
      window.resizeBy(-10, 0);
      window.resizeBy(0, 0);
      break
    case 38:
      window.resizeBy(0, 0);
      window.resizeBy(0, -10);
      break
    case 40:
      window.moveBy(0, 0);
      window.resizeBy(0, 10);
      break
    default:
      break
  }
}