// ---------------------------------------------
// IMAGES -
//  - Common global variables used in the pages.
//  - Functions to manipulate images.
// ---------------------------------------------

browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
ns3up = (browserName == "Netscape" && browserVer >= 3);
ie4up = (browserName.indexOf("Microsoft") >= 0 && browserVer >= 4);

var photoMessage="Thank you for visiting Grá site.  Photo/Image not available";
var constMessage="Thank you for visiting Grá site. It is under construction at present";
var preloadFlag = false;
var loadingMessage="LOADING IMAGES ... PLEASE WAIT ...";
var doneLoadingMessage="LOADING IMAGES ... PLEASE WAIT ...DONE!!!";
var centerImageObjID="MedjGallery";
var medImageDir="images/Medugorje280805/";
var imageDir="images/";
var JPG=".jpg";
var BLACK="#000000";
var WHITE="#ffffff";
var defaultLinkButtonColour="#36344d";
// greyish colour --> "#44444d"
// blueish colour --> "#3399cc"
// white --> "#ffffff"
var defaultMidContainerColour="#3399cc";
var initialWelcomeMsgMidContainer="";


// --------------------------------
// FUNCTIONS - to do with Galleries
// --------------------------------

// Funcion to Create new image object
function newImage(arg)
{
   if (document.images) {
      rslt = new Image();
      rslt.src = arg;
      return rslt;
   }
}

// Function to preload images on a gallery page.
function preloadImages(directory, files)
{
   if (document.images) {
      imgDir = "images/" + directory + "/";

      if (files = "MEDJ") {
	at_pool_1 = newImage(imgDir + "at_pool_1.jpg");
	at_pool_2 = newImage(imgDir + "at_pool_2.jpg");
	at_bottom_mtn = newImage(imgDir + "at_bottom_mtn.jpg");
	follow_me = newImage(imgDir + "follow_me.jpg");
	four_at_night = newImage(imgDir + "four_at_night.jpg");
	gang_of_four = newImage(imgDir + "gang_of_four.jpg");
        him_and_me = newImage(imgDir + "him_and_me.jpg");
        our_ladys_statue_2 = newImage(imgDir + "our_ladys_statue_2.jpg");
        two_on_podbrdo = newImage(imgDir + "two_on_podbrdo.jpg");
        sacred_heart_church_1 = newImage(imgDir + "sacred_heart_church_1.jpg");
        three_at_top = newImage(imgDir + "three_at_top.jpg");
        gang_of_four = newImage(imgDir + "gang_of_four.jpg");
        at_mass = newImage(imgDir + "at_mass.jpg");
        twomen_and_alady = newImage(imgDir + "twomen_and_alady.jpg");
        group_1 = newImage(imgDir + "group_1.jpg");
        at_pool_3 = newImage(imgDir + "at_pool_3.jpg");

	preloadFlag = true;
      }
      if (files = "CLEANUP") {
        cleanup1 = newImage(imgDir + "cleanup1.jpg");
	cleanup2 = newImage(imgDir + "cleanup2.jpg");
	cleanup3 = newImage(imgDir + "cleanup3.jpg");
	cleanup4 = newImage(imgDir + "cleanup4.jpg");
	cleanup5 = newImage(imgDir + "cleanup5.jpg");
	cleanup6 = newImage(imgDir + "cleanup6.jpg");
        cleanup7 = newImage(imgDir + "cleanup7.jpg");
        gathering1 = newImage(imgDir + "gathering1.jpg");
        gathering2 = newImage(imgDir + "gathering2.jpg");
        
	preloadFlag = true;
      }
      if (files = "HOUSE") {
        Prayer_room_start_1 = newImage(imgDir + "Prayer_room_start_1.jpg");
	Prayer_room_start_2 = newImage(imgDir + "Prayer_room_start_2.jpg");
	Prayer_room_start_5 = newImage(imgDir + "Prayer_room_start_5.jpg");
	Prayer_room_start_6 = newImage(imgDir + "Prayer_room_start_6.jpg");
	Prayer_room_start_7 = newImage(imgDir + "Prayer_room_start_7.jpg");
	Prayer_room_start_8 = newImage(imgDir + "Prayer_room_start_8.jpg");
	Prayer_room_start_9 = newImage(imgDir + "Prayer_room_start_9.jpg");
	Prayer_room_start_10 = newImage(imgDir + "Prayer_room_start_10.jpg");
	prayerRoom_3 = newImage(imgDir + "prayerRoom_3.jpg");
	prayerRoom_4 = newImage(imgDir + "prayerRoom_4.jpg");
	prayerRoom_5 = newImage(imgDir + "prayerRoom_5.jpg");

	Hall_1 = newImage(imgDir + "hall_1.jpg");
	Hall_3 = newImage(imgDir + "hall_3.jpg");

	under_c_1 = newImage(imgDir + "under_c_1.jpg");
	under_c_2 = newImage(imgDir + "under_c_2.jpg");
	under_c_3 = newImage(imgDir + "under_c_3.jpg");
	under_c_4 = newImage(imgDir + "under_c_4.jpg");
	under_c_5 = newImage(imgDir + "under_c_5.jpg");
	under_c_6 = newImage(imgDir + "under_c_6.jpg");

	off_kitchen_1 = newImage(imgDir + "off_kitchen_1.jpg");
	office_1 = newImage(imgDir + "office_1.jpg");
	bathroom_1 = newImage(imgDir + "bathroom_1.jpg");
	bedroom_1 = newImage(imgDir + "bedroom_1.jpg");
	bedroom_2 = newImage(imgDir + "bedroom_2.jpg");
	bedroom_3 = newImage(imgDir + "bedroom_3.jpg");
	bedroom_4 = newImage(imgDir + "bedroom_4.jpg");

        front3 = newImage(imgDir + "front3.jpg");
	back1 = newImage(imgDir + "back1.jpg");
	back2 = newImage(imgDir + "back2.jpg");
        geese = newImage(imgDir + "geese.jpg");
        hens2 = newImage(imgDir + "hens2.jpg");
        hens4 = newImage(imgDir + "hens4.jpg");
	main_hall = newImage(imgDir + "dsc01892.jpg");
	kitchen_1 = newImage(imgDir + "kitchen_1.jpg");
	bedroom = newImage(imgDir + "dsc01885.jpg");
        living_room_3 = newImage(imgDir + "dsc01890.jpg");
        
	preloadFlag = true;
      }
   }
}


//
// Gallery script.
// With image cross fade effect for those browsers that support it.
// Script copyright (C) 2004 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
function LoadGallery(dir,pictureName,imageFile,titleCaption,captionText)
{
  if (document.images && (preloadFlag == true)) {
    imgOn = "images/" + dir + "/" + imageFile + JPG;
    if (document.all)
    {
      document.getElementById(pictureName).style.filter="blendTrans(duration=1)";
      document.getElementById(pictureName).filters.blendTrans.Apply();
    }
    document.getElementById(pictureName).src = imgOn;
    if (document.all)
    {
      document.getElementById(pictureName).filters.blendTrans.Play();
    }
    document.getElementById(titleCaption).innerHTML=captionText;
    document.getElementById(titleCaption).style.color="#FFFFFF";
  } else {
    alert(loadingMessage);
  }
}



// Function to view in main area the thumbnail clicked on...
function showThePhoto(dir, imgName)
{
   if (ns3up || ie4up) {
      tmpDir = "images/" + dir + "/"
      imgOn = (tmpDir + imgName);
      document.centrePicture.src = imgOn;
   }
}

// Function for index page ... Under construction message.
function leftClick(e) {
  if (document.title=="Grá Site") {
    if (event.button==0) {
      alert(constMessage);
      return false;
    }
  }
}

// Function to Protect images and give greeting message.

function rightClick(e) {
  if (document.all) {
    if (event.button==2||event.button==3) {
      alert(photoMessage);
      return false;
    }
  }
  if (document.layers) {
    if (e.which == 3) {
      alert(photoMessage);
      return false;
    }
  }
}