function titleMinMax(id, imageid, minimage, maximage) {
	var x=document.getElementById(imageid);
  var y=document.getElementById(id);
  if (y.style.display == 'inline'){
    x.src=maximage;
    y.style.display = 'none';
  }
  else
  {
    x.src=minimage;
    y.style.display = 'inline';
  }
}