/*
Photo Gallery Scripts for Azafron.com
by Anthony Hecht <anthony at slapnose com>

Modified from scripts from Jeremy Keith at domscripting.com
Created 5.20.06
Last Modified 5.21.06
*/

function showPic(whichpic,links) {
  if (!document.createElement) return true;
  if (!document.createTextNode) return true;
  var source = whichpic.getAttribute("href");
	var gallery = document.getElementById("imagegallery");
	// if theimage element doesn't exist, create it
	if (!document.getElementById("theimage")) {
		var theimage = document.createElement("img");
		theimage.setAttribute("id","theimage");
	} else {
		var theimage = document.getElementById("theimage");
	}
  // if the caption element doesn't exist, create it
	if (!document.getElementById("photoCaption")) {
		var caption = document.createElement("p");
  	caption.setAttribute("id","photoCaption");
		gallery.parentNode.insertBefore(caption,gallery);
		var desc_text = document.createTextNode("desc");
		caption.appendChild(desc_text);
	} else {
		var caption = document.getElementById("photoCaption");
	}
	// set up the image and caption elements
	theimage.setAttribute("src",source);
  if (whichpic.getAttribute("title")) {
    var text = whichpic.getAttribute("title");
  } else {
    var text = "";
  }
  if (caption.firstChild.nodeType == 3) {
    caption.firstChild.nodeValue = text;
  }
	// configure the next and last links
	for (	var i=0;i < links.length; i++) {
		if (links[i].getAttribute("href") == source) {
			if (i == 0) {
				var lastlink = links[links.length - 1];
				var nextlink = links[i + 1];
			} else if (i == links.length - 1) {
				var nextlink = links[0];
				var lastlink = links[i - 1];
			} else {
				var nextlink = links[i + 1];
				var lastlink = links[i - 1];
			}
		}
	}
	// set up next link
	if (!document.getElementById("nextlink")) {
		var next = document.createElement("a");
		var next_text = document.createTextNode(" ");
		next.setAttribute("id", "nextlink");
		next.appendChild(next_text);
	} else {
		var next = document.getElementById("nextlink");
	}
	// set up last link
	if (!document.getElementById("lastlink")) {
		var last = document.createElement("a");
		var last_text = document.createTextNode(" ");
		last.setAttribute("id", "lastlink");
		last.appendChild(last_text);
	} else {
		var last = document.getElementById("lastlink");
	}
	next.setAttribute("href", nextlink.getAttribute("href"));
	next.setAttribute("title", nextlink.getAttribute("title"));
	last.setAttribute("href", lastlink.getAttribute("href"));
	last.setAttribute("title", lastlink.getAttribute("title"));
	last.onclick = function() {
      return showPic(this,links);
    }
	next.onclick = function() {
      return showPic(this,links);
    }
	// aattach everything to the document
  gallery.parentNode.insertBefore(theimage,caption);
	theimage.parentNode.insertBefore(last, theimage);
	theimage.parentNode.insertBefore(next, theimage);
  return false;
}

function prepareGallery() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("imagegallery")) return false;
  var gallery = document.getElementById("imagegallery");
  var links = gallery.getElementsByTagName("a");
  for ( var i=0; i < links.length; i++) {
    if (i == 0) {
			var firstimg = links[i].getAttribute("href");
			var firstdesc = links[i].getAttribute("title");
		}
		links[i].onclick = function() {
      return showPic(this,links);
    }
  }
	showPic(links[0],links);
}

addLoadEvent(prepareGallery);