function button_on ( imgId )
{
  if ( document.images )
  {
    butOn = eval ( imgId + "_over.src" );
    document.getElementById(imgId).src = butOn;
  }
}

function button_off ( imgId )
{
  if ( document.images )
  {
    butOff = eval ( imgId + ".src" );
    document.getElementById(imgId).src = butOff;
  }
}

function swapimage(box_id) {
	imgrating1 = new Image ();
	imgrating1_over = new Image ();
	
	imgrating1.src = "http://www.shropshiretourism.co.uk/images/rating12.gif";
	imgrating1_over.src = "http://www.shropshiretourism.co.uk/images/rating12_over.gif";
	
	imgrating3 = new Image ();
	imgrating3_over = new Image ();
	
	imgrating3.src = "http://www.shropshiretourism.co.uk/images/rating3.gif";
	imgrating3_over.src = "http://www.shropshiretourism.co.uk/images/rating3_over.gif";
	
	imgrating4 = new Image ();
	imgrating4_over = new Image ();
	
	imgrating4.src = "http://www.shropshiretourism.co.uk/images/rating4.gif";
	imgrating4_over.src = "http://www.shropshiretourism.co.uk/images/rating4_over.gif";
	
	imgrating5 = new Image ();
	imgrating5_over = new Image ();
	
	imgrating5.src = "http://www.shropshiretourism.co.uk/images/rating5.gif";
	imgrating5_over.src = "http://www.shropshiretourism.co.uk/images/rating5_over.gif";
	
	
	imgratingall = new Image ();
	imgratingall_over = new Image ();
	
	imgratingall.src = "http://www.shropshiretourism.co.uk/images/allrating.gif";
	imgratingall_over.src = "http://www.shropshiretourism.co.uk/images/allrating_over.gif";
	
	var the_box = document.getElementById(box_id);
	if (the_box.checked) {
		document.getElementById(box_id).checked=false;
		button_off('img'+box_id);
	} else {
		document.getElementById(box_id).checked=true;
		button_on('img'+box_id);
	}
	//alert(the_box.checked);
	return false;
}