/*Yetii - Yet (E)Another Tab Interface Implementation,version 1.6,http://www.kminek.pl/lab/yetii/,Copyright (c) Grzegorz Wojcik,Code licensed under the BSD License: http://www.kminek.pl/bsdlicense.txt*/
function Yetii() {
    this.defaults={id:null,active:1,interval:null,wait:null,persist:null,tabclass:'tab',activeclass:'active',callback:null,leavecallback:null};
    this.activebackup=null;
    for(var n in arguments[0]) {
        this.defaults[n]=arguments[0][n]
    };
    this.getTabs= function() {
        var a=[];
        var b=document.getElementById(this.defaults.id).getElementsByTagName('*');
        var c=new RegExp("(^|\\s)"+this.defaults.tabclass.replace(/\-/g,"\\-")+"(\\s|$)");
        for(var i=0;i<b.length;i++) {
            if(c.test(b[i].className))
                a.push(b[i])
        }
        return a
    };
    this.links=document.getElementById(this.defaults.id+'-nav').getElementsByTagName('a');
    this.listitems=document.getElementById(this.defaults.id+'-nav').getElementsByTagName('li');
    this.show= function(a) {
        for(var i=0;i<this.tabs.length;i++) {
            this.tabs[i].style.display=((i+1)==a)?'block':'none';
            if((i+1)==a) {
                this.addClass(this.links[i],this.defaults.activeclass);
                this.addClass(this.listitems[i],this.defaults.activeclass+'li')
            } else {
                this.removeClass(this.links[i],this.defaults.activeclass);
                this.removeClass(this.listitems[i],this.defaults.activeclass+'li')
            }
        }
        if(this.defaults.leavecallback&&(a!=this.activebackup))
            this.defaults.leavecallback(this.defaults.active);
        this.activebackup=a;
        this.defaults.active=a;
        if(this.defaults.callback)
            this.defaults.callback(a)
    };
    this.rotate= function(a) {
        this.show(this.defaults.active);
        this.defaults.active++;
        if(this.defaults.active>this.tabs.length)
            this.defaults.active=1;
        var b=this;
        if(this.defaults.wait)
            clearTimeout(this.timer2);
        this.timer1=setTimeout( function() {
            b.rotate(a)
        },a*1000)
    };
    this.next= function() {
        var a=(this.defaults.active+1>this.tabs.length)?1:this.defaults.active+1;
        this.show(a);
        this.defaults.active=a
    };
    this.previous= function() {
        var a=((this.defaults.active-1)==0)?this.tabs.length:this.defaults.active-1;
        this.show(a);
        this.defaults.active=a
    };
    this.previous= function() {
        this.defaults.active--;
        if(!this.defaults.active)
            this.defaults.active=this.tabs.length;
        this.show(this.defaults.active)
    };
    this.gup= function(a) {
        a=a.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
        var b="[\\?&]"+a+"=([^&#]*)";
        var c=new RegExp(b);
        var d=c.exec(window.location.href);
        if(d==null)
            return null;
        else
            return d[1]
    };
    this.parseurl= function(a) {
        var b=this.gup(a);
        if(b==null)
            return null;
        if(parseInt(b))
            return parseInt(b);
        if(document.getElementById(b)) {
            for(var i=0;i<this.tabs.length;i++) {
                if(this.tabs[i].id==b)
                    return(i+1)
            }
        }
        return null
    };
    this.createCookie= function(a,b,c) {
        if(c) {
            var d=new Date();
            d.setTime(d.getTime()+(c*24*60*60*1000));
            var e="; expires="+d.toGMTString()
        } else
            var e="";
        document.cookie=a+"="+b+e+"; path=/"
    };
    this.readCookie= function(a) {
        var b=a+"=";
        var d=document.cookie.split(';');
        for(var i=0;i<d.length;i++) {
            var c=d[i];
            while(c.charAt(0)==' ')
                c=c.substring(1,c.length);
            if(c.indexOf(b)==0)
                return c.substring(b.length,c.length)
        }
        return null
    };
    this.contains= function(a,b,c) {
        return a.indexOf(b,c)!=-1
    };
    this.hasClass= function(a,b) {
        return this.contains(a.className,b,' ')
    };
    this.addClass= function(a,b) {
        if(!this.hasClass(a,b))
            a.className=(a.className+' '+b).replace(/\s{2,}/g,' ').replace(/^\s+|\s+$/g,'')
    };
    this.removeClass= function(a,b) {
        a.className=a.className.replace(new RegExp('(^|\\s)'+b+'(?:\\s|$)'),'$1');
        a.className.replace(/\s{2,}/g,' ').replace(/^\s+|\s+$/g,'')
    };
    this.tabs=this.getTabs();
    this.defaults.active=(this.parseurl(this.defaults.id))?this.parseurl(this.defaults.id):this.defaults.active;
    if(this.defaults.persist&&this.readCookie(this.defaults.id))
        this.defaults.active=this.readCookie(this.defaults.id);
    this.activebackup=this.defaults.active;
    this.show(this.defaults.active);
    var f=this;
    for(var i=0;i<this.links.length;i++) {
        this.links[i].customindex=i+1;
        this.links[i].onclick= function() {
            if(f.timer1)
                clearTimeout(f.timer1);
            if(f.timer2)
                clearTimeout(f.timer2);
            f.show(this.customindex);
            if(f.defaults.persist)
                f.createCookie(f.defaults.id,this.customindex,0);
            if(f.defaults.wait)
                f.timer2=setTimeout( function() {
                    f.rotate(f.defaults.interval)
                },f.defaults.wait*1000);
            return false
        }
    }
    if(this.defaults.interval)
        this.rotate(this.defaults.interval)
};