function closeup_img(name, ndx){
  var img = eval('document.'+name);
  var imgtype = img.src.charAt(img.src.lastIndexOf(".")-1);
  if (name == '')
    return;
  if (ndx != '0'){
    for ( var loop=0; loop <= document.images.length; loop++){
      var imgnam = document.images[loop].name;
      if ( imgnam == name){
        if (ndx == '1')
          document.images[loop-1].style.visibility = "visible";
        if (ndx == '2')
          document.images[loop-1].style.visibility = "hidden";
      }
    }
    return;
  }
  if (imgtype == "t"){
    img.src = img.src.replace('t.','s.');
	 img.title = "click for original thumbnail";
  }
  else if (imgtype == "s"){
  	 img.src = img.src.replace('s.','t.');
	 img.title = "click for enlargement";
  }
}

function need_java(){
var newtxt1 = document.createTextNode("Click on photo for enlargement");
var newtxt2 = document.createTextNode("Click again for original thunbnail");
document.getElementById("notJava").replaceChild(newtxt1, document.getElementById("notJava").childNodes[3]);
document.getElementById("notJava").replaceChild(newtxt2, document.getElementById("notJava").childNodes[5]);
}

function need_js(){
var newtxt1 = document.createTextNode("Click on photo for enlargement");
var newtxt2 = document.createTextNode("Click again for thumbnail");
document.getElementById("notJava").replaceChild(newtxt1, document.getElementById("notJava").childNodes[3]);
document.getElementById("notJava").replaceChild(newtxt2, document.getElementById("notJava").childNodes[5]);
}