function toggle_thumb(i)
{
  if (i.src.indexOf("small") == -1)
    {
      newstring = i.src.substring(0,i.src.indexOf(".jpg")) + "_small.jpg";
    } else
      {
	newstring = i.src.substring(0,i.src.indexOf("_small")) + ".jpg";
	i.width = 400;
      }   
  return (newstring);
}



function show_click()
{
  document.write("Click to change screen shot size.");
}

function showImgUrlinImage(img,img2)
{
  img.src=img2.src;
  img.width=img2.width;
  img.height=img2.height;
}

function clearImg(img1,img2)
{
  var blank=new Image();
  blank.src="/img/blank.gif";
  img1.width=1;
  img1.height=1;
  img1.src=blank.src;
  img2.src=blank.src;
  img2.width=1;
  img2.height=1;
}

function show_click_enlarge()
{
  document.write("<br>&gt; Click to enlarge &lt;");
}