/*
// "Frontpage Slideshow" for Joomla! 1.0.x - Version 1.2
// Copyright (c) 2006 - 2007 JoomlaWorks.gr - http://www.joomlaworks.gr
// This code cannot be redistributed without permission from http://www.joomlaworks.gr/
// More info at: http://www.joomlaworks.gr/
// Developers: Fotis Evangelou - George Chouliaras
// ***Last update: February 9th, 2007***
*/

// Parameters
var speed_delay = 6000; // adjust delay length here, in miliseconds
var slide_speed = 1000; // adjust fade duration here, in miliseconds

// Don't change anything below this point!
var autoslide = true;
var slideOuter = "slide-wrapper";
var slideLoading = "slide-loading";
var slideClass = "slide";
var naviClass = "navi";
var activeSuffix = "-active";

// Effect handle
var isShowing = 0;
var slides;
var navis;
var fx1 = new Array();
var firstDelay = false;
var pauseFlag = false;
var timer;
var playButton;



function initFrontpageSlideshow() {
    displayloading = document.getElementById(slideLoading);
    if (displayloading) displayloading.style.display = "none";
    else return;
    displayslide = document.getElementById(slideOuter);
    if (displayslide) displayslide.style.display = "block";
    
    if (readCookie("autoplay_slides") == "true") autoslide = true;
    else if (readCookie("autoplay_slides") == "false") autoslide = false;   
    playButton = document.getElementById('playButton');
    if (autoslide) { showPauseButton(); }
    else {  showPlayButton(); }

    slides = document.getElementsByClassName(slideClass);
    navis = document.getElementsByClassName(naviClass);
    
    if (slides.length == 0 || navis.length == 0) return;
    
    for (i = 0; i < slides.length; ++i) {
        fx1[i] = new fx.Combo(slides[i], { opacity: true, width: false, duration: slide_speed, height: false, toggle: false });
        navis[i].onclick = function() {
            current = null;
            for (j = 0; j < navis.length; ++j) {
                if (this == navis[j]) current = j;
            }
            if (current != isShowing) {
                fx1[isShowing].clearTimer();
                if (fx1[isShowing].el.offsetHeight) fx1[isShowing].hide();
                fx1[current].toggle();
                navis[isShowing].className = naviClass;
                navis[current].className = naviClass + activeSuffix;
                isShowing = current;
                clearSlide();
            }
            
            return false;
        }
        if (i != 0) {
            fx1[i].hide();
        } else {
            navis[i].className = naviClass + activeSuffix;
        }
    }
}

function showPauseButton() {
    createCookie("autoplay_slides", "true");
    playButton.title = "Pause"; // change "Pause" label here
    playButton.className="pause";
    pauseFlag = false;
    autoSlide();
}

function showPlayButton() {
    createCookie("autoplay_slides", "false");
    playButton.title = "Play"; // change "Play" label here
    playButton.className="play";
    pauseFlag = true;
    clearTimeout(timer);
    firstDelay = false;
}

function showNext() {
    if (slides.length <= 1) return;
    fx1[isShowing].clearTimer();
    if (fx1[isShowing].el.offsetHeight) fx1[isShowing].hide();
    navis[isShowing].className = naviClass;
    if (isShowing == slides.length - 1) {
        fx1[0].toggle();
        isShowing = 0;
    } else {
        fx1[++isShowing].toggle();
    }
    navis[isShowing].className = naviClass + activeSuffix;
}

function showPrev() {
    if (slides.length <= 1) return;
    fx1[isShowing].clearTimer();
    if (fx1[isShowing].el.offsetHeight) fx1[isShowing].hide();
    navis[isShowing].className = naviClass;
    if (isShowing == 0) {
        fx1[slides.length - 1].toggle();
        isShowing = slides.length - 1;
    } else {
        fx1[--isShowing].toggle();
    }
    navis[isShowing].className = naviClass + activeSuffix;
}

function autoSlide() {
    if (!pauseFlag) {
        timer = setTimeout('autoSlide()', speed_delay);
        if (!firstDelay) firstDelay = true;
        else showNext();
    }
}

function clearSlide() {
    if (!pauseFlag) {
        clearTimeout(timer);
        firstDelay = false;
        autoSlide();
    }
}

function playButtonClicked() {
    if (pauseFlag) showPauseButton();
    else showPlayButton();
}

// Cookie handle
function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

// Load everything up
function fpssinit() {
    if (arguments.callee.done) return;
    arguments.callee.done = true;
//    if (_timer) clearInterval(_timer);
    initFrontpageSlideshow();
};
// if (document.addEventListener) {
//    document.addEventListener("DOMContentLoaded", fpssinit, false);
//}

// IRA: DOM2
if ( typeof window.addEventListener != "undefined" )
	window.addEventListener( "load", initFrontpageSlideshow, false );

// IRA: IE
else if ( typeof window.attachEvent != "undefined" ) {
	window.attachEvent( "onload", initFrontpageSlideshow );

}
else {
	if ( window.onload != null ) {
		var oldOnload = window.onload;
		window.onload = function ( e ) {
			oldOnload( e );
			initFrontpageSlideshow();
		};
	}
	else 
		window.onload = initFrontpageSlideshow;
}