// Definition of class imgSpotOver

  function setImgOff (imgname) {
    document[imgname].src = this.imgoff.src
  }

  function setImgOver (imgname) {
    document[imgname].src = this.imgover.src
  }
	
  function imgSpotOver (srcoff, srcover) {
    this.imgoff      = new Image()
    this.imgoff.src  = srcoff
    this.imgover     = new Image()
    this.imgover.src = srcover
    this.setImgOff   = setImgOff
    this.setImgOver  = setImgOver
  }

  // End of class imgSpotOver definition