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/*
// "Simple Picture Slideshow" Plugin for Joomla 3.1 - Version 1.5.8
// License: GNU General Public License version 2 or later; see LICENSE.txt
// Author: Andreas Berger - andreas_berger@bretteleben.de
// Copyright (C) 2013 Andreas Berger - http://www.bretteleben.de. All rights reserved.
// Project page and Demo at http://www.bretteleben.de
// ***Last update: 2013-08-23***
*/
function besps_slideshow(besps_slideid,besps_ftim,besps_stim,besps_steps,besps_startwhen,besps_emax,besps_caps,besps_preload){
//declarations
var self = this;
var slideid=besps_slideid;
var ftim=besps_ftim;
var stim=besps_stim;
var steps=besps_steps;
var startwhen=besps_startwhen;
var emax=besps_emax;
var preload=besps_preload;
var stopit=1;
var startim=1;
var u=0;
var parr = new Array();
var ptofade,pnext,factor,mytimeout;
var caps=besps_caps;
//daisychain onload-events
this.be_daisychain=function(sl){
if(window.addEventListener){
window.addEventListener('load',sl,false);
}
else if(window.attachEvent){
window.attachEvent('onload',sl);
}
else{
if(window.onload){
var ld=window.onload;
window.onload=function(){ld();sl();};
}
else{
window.onload=sl;
}
}
};
//push images into array and get things going
this.b_myfade = function(){
var a,idakt,paktidakt,ie5exep;
for(a=1;a<=emax;a++){
idakt="img_"+slideid+"_"+a;paktidakt=document.getElementById(idakt);
ie5exep=new Array(paktidakt);parr=parr.concat(ie5exep);
if(preload&&a==emax){
setTimeout(function(){self.b_preload();},10);
}
}
if(startwhen){
stopit=0;
mytimeout=setTimeout(function(){self.b_slide();},stim);
}
}
//prepare current and next and trigger slide
this.b_slide = function(){
clearTimeout(mytimeout);
u=0;
ptofade=parr[startim-1];
if(startim<emax){pnext=parr[startim];}
else{pnext=parr[0];}
pnext.style.zIndex=1;
pnext.style.visibility="visible";
pnext.style.filter="Alpha(Opacity=100)";
try{pnext.style.removeAttribute("filter");} catch(err){}
pnext.style.MozOpacity=1;
pnext.style.opacity=1;
ptofade.style.zIndex=2;
ptofade.style.visibility="visible";
ptofade.style.filter="Alpha(Opacity=100)";
ptofade.style.MozOpacity=1;
ptofade.style.opacity=1;
factor=100/steps;
if(stopit=="0"){
this.b_slidenow();
}
}
//one step forward
this.b_forw = function(){
stopit=1;
clearTimeout(mytimeout);
ptofade=parr[startim-1];
if(startim<emax){pnext=parr[startim];startim=startim+1;}
else{pnext=parr[0];startim=1;}
ptofade.style.visibility="hidden";
ptofade.style.zIndex=1;
pnext.style.visibility="visible";
pnext.style.zIndex=2;
this.b_switchcap();
self.b_slide();
//counter
self.setCurrentNumber();
}
//one step back
this.b_back = function(){
stopit=1;
clearTimeout(mytimeout);
if(u==0){ //between two slides
ptofade=parr[startim-1];
if(startim<emax){pnext=parr[startim];}
else{pnext=parr[0];}
pnext.style.visibility="hidden";
ptofade.style.zIndex=1;
ptofade.style.visibility="visible";
if(startim>=2){startim=startim-1;}
else{startim=emax;}
this.b_switchcap();
self.b_slide();
}
else{ //whilst sliding
this.b_switchcap();
self.b_slide();
}
//counter
self.setCurrentNumber();
}
//slide as said, then give back
this.b_slidenow = function(){
var check1,maxalpha,curralpha;
check1=ptofade.style.MozOpacity;
maxalpha=(100-factor*u)/100*105;
if(check1<=maxalpha/100){u=u+1;}
curralpha=100-factor*u;
ptofade.style.filter="Alpha(Opacity="+curralpha+")";
ptofade.style.MozOpacity=curralpha/100;
ptofade.style.opacity=curralpha/100;
if(u<steps){ //slide not finished
if(stopit=="0"){mytimeout=setTimeout(function(){self.b_slidenow();},ftim);}
else {this.b_slide();}
}
else{ //slide finished
if(startim<emax){
ptofade.style.visibility="hidden";
ptofade.style.zIndex=1;
pnext.style.zIndex=2;
startim=startim+1;u=0;
this.b_switchcap();
mytimeout=setTimeout(function(){self.b_slide();},stim);
}
else{
ptofade.style.visibility="hidden";
ptofade.style.zIndex=1;
pnext.style.zIndex=2;
startim=1;u=0;
this.b_switchcap();
mytimeout=setTimeout(function(){self.b_slide();},stim);
}
}
//counter
self.setCurrentNumber();
}
//manual start
this.b_start= function(){
if(stopit==1){
stopit=0;
this.b_switchcap();
mytimeout=setTimeout(function(){self.b_slide();},stim);
}
}
//manual stop
this.b_stop= function(){
clearTimeout(mytimeout);
stopit=1;
this.b_switchcap();
this.b_slide();
}
//preload
this.b_preload= function(){
var arrdelta,tempsrc,j;
if(preload&&preload.length>=1){
for (j=0;j<preload.length;j++){
arrdelta=(emax-preload.length+j)*1;
tempsrc=parr[arrdelta].getElementsByTagName("img")[0].src.toString();
parr[arrdelta].getElementsByTagName("img")[0].src=tempsrc.replace(/\/plugins\/content\/simplepictureslideshow\/files\/besps.png$/g, preload[j]);
}
}
}
//switch captions
this.b_switchcap = function(){
if(caps!="NOCAPS"&&caps.length>=1){
document.getElementById("bs_caps_"+besps_slideid).getElementsByTagName("div")[0].innerHTML=(caps[startim-1][0]!=""||caps[startim-1][1]!="")?"<span>"+caps[startim-1][0]+"</span><span>"+caps[startim-1][1]+"</span>":" ";
}
}
//counter
this.setCurrentNumber= function(){
if(document.getElementById("besps_counter_"+besps_slideid)){
var actim=startim;
var lastim=emax;
//capture doubled arrays
if(parr.length==4&&parr[1].getElementsByTagName("img")[0].src==parr[3].getElementsByTagName("img")[0].src){
lastim=2;
actim-=(actim>=3)?2:0;
}
if(emax>=10){actim=(actim<=9)?('0'+actim):(actim);}
if(emax>=100){actim=(actim<=99)?('0'+actim):(actim);}
document.getElementById("besps_counter_"+besps_slideid).innerHTML=actim+"/"+lastim;
}
}
//call autostart-function
this.be_daisychain(this.b_myfade);
}