function ShowPicture(svImageFilename, lvWidth, lvHeight)
  {

  var slBaseDir = "http://www.longtrails.com/tyt/";
  // var slBaseDir = "E:\\My Documents\\My Webs\\LongTrails\\";

  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4))
    olWindow = window.showModalDialog(slBaseDir + "picture.htm", slBaseDir + "images/" + svImageFilename);
  else
    window.location=slBaseDir + "images/" + svImageFilename;
    // window.location=slBaseDir + "picture.htm?pic=" + svImageFilename;

  }

// From Ofoto.
function slideshowWindow(index) {
        newWin = window.open('Slideshow.jsp?index=' + index + '&userid=6985782903&sessionid=1753754903&sourceid=2533302&collid=5156782903', "slideshow", "scrollbars,resizable,width=510,height=600");
        newWin.focus();
        return false;
        }