// ====================
// ==== Parameters ====
// ====================
var showIndex = new Boolean(true); // Enable index display
var indexSeparator = ' '; // String between index items
var showCaption = new Boolean(true); // Enable caption display
var preCache = new Boolean(false); // Activates pre-caching of next photo
var pictureID = 'photo'; // SPAN or DIV ID for photo
var captionID = 'caption'; // SPAN or DIV ID for caption
var indexID = 'index'; // SPAN or DIV ID for index
var wrapOn = new Boolean(true); // Wrapping from last photo to first and vice-versa
var slideMode = new Boolean(false); // Enables slideshow mode
var slideDelay = 10; // Default delay between slides inseconds
var clickMode = new Boolean(true); // Disable image clicking to advance
var imageALT = new Boolean(false); // Disable caption as image ALT tag text

 // Added popup to show larger image in new browser
function PopupPic(sPicURL) { 
// window.open( "http://www.thefusiongallery.com/popup.htm?"+sPicURL, "", 
window.open( "popup.htm?"+sPicURL, "", 
"resizable=1,HEIGHT=300,WIDTH=500");
} 

function createRequestObject() {
 FORM_DATA = new Object();
 separator = ',';
 query = '' + this.location;
 query = query.substring((query.indexOf('?')) + 1);
 if (query.length < 1) { return false; }  // Perhaps we got some bad data?
 keypairs = new Object();
 numKP = 1;
 while (query.indexOf('&') > -1) {
  keypairs[numKP] = query.substring(0,query.indexOf('&'));
  query = query.substring((query.indexOf('&')) + 1);
  numKP++;
 }
 keypairs[numKP] = query;
 for (i in keypairs) {
  keyName = keypairs[i].substring(0,keypairs[i].indexOf('='));
  keyValue = keypairs[i].substring((keypairs[i].indexOf('=')) + 1);
  while (keyValue.indexOf('+') > -1) {
   keyValue = keyValue.substring(0,keyValue.indexOf('+')) + ' ' + keyValue.substring(keyValue.indexOf('+') + 1);
  }
  keyValue = unescape(keyValue);
  if (FORM_DATA[keyName]) {
   FORM_DATA[keyName] = FORM_DATA[keyName] + separator + keyValue;
  } else {
   FORM_DATA[keyName] = keyValue;
  }
 }
 return FORM_DATA;
}

FORM_DATA = createRequestObject();
var glbCacheTimer;
var glbSlideTimer;
var glbCurrentPhoto = 1;
var photos = new Array ();
var largephotos = new Array ();
var captions = new Array ();

function getObjectByID(id) {
  if (document.all) { // IE
    return document.all[id];
  } else { // Netscape
    return document.getElementById(id);
  }
}

function showPhoto(index) {
  var theURL = "" + this.location;
  if (theURL.indexOf("?")>0) {
    theURL = theURL.substring(0,theURL.indexOf("?"));
  }
  theURL += "?photo=" + index;
  if (slideMode == true) {
    theURL += "&slideMode=true";
    theURL += "&slideDelay=" + slideDelay;
  }
  this.location = theURL;
}

function showNext() {
  if (glbCurrentPhoto >= photos.length) {
    if (wrapOn == true) {
      glbCurrentPhoto = 1;
      showPhoto (glbCurrentPhoto);
    }
  } else {
    glbCurrentPhoto += 1;
    showPhoto (glbCurrentPhoto);
  }
}

function showPrevious() {
  if (glbCurrentPhoto <= 1) {
    if (wrapOn == true) {
      glbCurrentPhoto = photos.length;
      showPhoto (glbCurrentPhoto);
    }
  } else {
    glbCurrentPhoto += -1;
    showPhoto (glbCurrentPhoto);
  }
}

function showFirst() {
	glbCurrentPhoto = 1;
	showPhoto (glbCurrentPhoto);
}

function showLast() {
	glbCurrentPhoto = photos.length;
	showPhoto (glbCurrentPhoto);
}

function initPhoto() {
  var photoLocation = getObjectByID(pictureID);
  var imgString = '';
  if (clickMode == true) {imgString += "<a href='javascript:PopupPic("+ 'largephotos[glbCurrentPhoto-1]' + ")'>";} 
 // if (clickMode == true) {imgString += "<a href='"+largephotos[glbCurrentPhoto-1]+"'>";} 
  imgString += "<img border='0' id='mainImage' src='"+ photos[glbCurrentPhoto-1] +"'";
  if (imageALT == true) {imgString += ' alt="'+captions[glbCurrentPhoto-1].replace(/"/g,"'").replace(/<[^>]*>/g,"")+'"';}
 // imgString += '" class="photoborder"';
  imgString += ">";
  if (clickMode == true) {imgString += "</a>";}
  photoLocation.innerHTML = imgString;

  if (showCaption == true) {
    var photoCaption = getObjectByID(captionID);
    photoCaption.innerHTML = captions[glbCurrentPhoto-1];
  }

  if (showIndex == true) {buildIndex();}

}

function addPhoto(filename, caption) {
  // Add filenames and captions to their respective arrays.
  var len = photos.length;
  photos[len] = "images/art/small/" + filename;
  largephotos[len] = "images/art/large/" + filename;
  captions[len] = caption;
}

function buildIndex() {
  var indexString = '';
  var i;

  for (i = 1; i < photos.length+1; i++) {
    if (i>1) {indexString += indexSeparator}
    if (i == glbCurrentPhoto) {
      indexString += '<b>' + i + '</b>';
    } else { // Make all other numbers links
      indexString += '<a href="javascript:void(showPhoto(' + i + '));">' + i + '</a>';
    }
  }
  getObjectByID(indexID).innerHTML = indexString;
}

if (FORM_DATA["photo"]>0) {
  glbCurrentPhoto = Number(FORM_DATA["photo"]);
} else {
  glbCurrentPhoto = 1;
}

if (FORM_DATA["slideMode"] == "true") {
  slideMode = Boolean(true);
  slideDelay = FORM_DATA["slideDelay"];
}