/*
 * SimpleFader v1.0.0
 * http://www.faebusoft.ch/projects/simplefader
 * 
 * Copyright 2010, faebusoft.ch, Fabian von Allmen
 * Licensed under GPL Version 2 licenses.
 * http://www.gnu.org/licenses/gpl-2.0.txt
 * 
 * Version: v1.0.0 (2010-10-27)
 * Author: faebusoft.ch, Fabian von Allmen
 */

var simplefader={
    num:-1,
    cur:-99,
    old:-1,
    step:1,
    intervall:6*1000,
    fadeintervall:700,
    holderid:'simplefader',
    controlid:'simplefadercontrols',
    screens:null,
    timer:null,
    running:true,
    stop:false,
    screenchooser:true,
    playresume:true,
    init:function(){
        this.screens=jQuery('#'+this.holderid).children('.screen');
        this.num=this.screens.length;
        if(this.num==0){
            return
        }
        this.screens.each(function(i){
            jQuery(simplefader.screens[i]).mouseover(function(){
                simplefader.running=false
                });
            jQuery(simplefader.screens[i]).mouseout(function(){
                simplefader.running=true
                });
            if(simplefader.screenchooser){
                jQuery('#'+simplefader.controlid).append('<a href="#" id="simplefaderctrl'+i+'" onclick="simplefader.fadeTo('+i+');return false;" onfocus="this.blur();">'+(i+1)+'</a>')
                }
            });
    jQuery('#'+simplefader.controlid).mouseover(function(){
        simplefader.running=false
        });
    jQuery('#'+simplefader.controlid).mouseout(function(){
        simplefader.running=true
        });
    if(this.playresume){
        jQuery('#'+simplefader.controlid).append('<a href="#" onclick="simplefader.startStop();return false;" class="playresume" onfocus="this.blur();">&nbsp;</a>')
        }
        if(this.step<0){
        this.fadeTo(this.num-1)
        }else{
        this.fadeTo(0)
        }
        if(this.stop){
        this.startStop()
        }
    },
fadeTo:function(pos){
    window.clearTimeout(this.timer);
    this.old=this.cur;
    this.cur=pos;
    this.fade();
    this.timer=window.setTimeout('simplefader.walk();',this.intervall);
    if(!this.stop){
        this.startStop()
        }
    },
startStop:function(){
    this.stop=!this.stop;
    if(this.stop){
        jQuery('#'+simplefader.controlid+' a.playresume').addClass('fadernavon')
        }else{
        jQuery('#'+simplefader.controlid+' a.playresume').removeClass('fadernavon')
        }
    },
walk:function(){
    if(this.running&&!this.stop){
        window.clearTimeout(this.timer);
        this.old=this.cur;
        if(this.cur==-99){
            this.cur=0
            }else{
            this.cur+=this.step
            }
            if(this.cur>=this.num){
            this.cur=0
            }else if(this.cur<0){
            this.cur=this.num-1
            }
            this.fade()
        }
        this.timer=window.setTimeout('simplefader.walk();',this.intervall)
    },
fade:function(){
    if(this.old>-1){
        jQuery('#simplefaderctrl'+simplefader.old).removeClass('fadernavon');
        jQuery(this.screens[this.old]).fadeOut(this.fadeintervall,function(){})
        }
        if(this.cur>-1){
        jQuery(this.screens[this.cur]).fadeIn(this.fadeintervall,function(){
            jQuery('#simplefaderctrl'+simplefader.cur).addClass('fadernavon')
            })
        }
    }
};