var TINY= {};

/*
function $(i) {
    return document.getElementById(i)
}
*/

function $$(e,p) {
    p=p||document;
    return p.getElementsByTagName(e)
}

TINY.slideshow=function(n) {
    this.infoSpeed=this.imgSpeed=this.speed=10;
    this.thumbOpacity=this.navHover=70;
    this.navOpacity=25;
    this.scrollSpeed=5;
    this.letterbox='#fff';
    this.n=n;
    this.c=0;
    this.a=[];
};

TINY.slideshow.prototype= {

    init: function(s,z,b,f,q) {
	s=$(s);
        var m=$$('li',s),i=0,w=0;
        this.running=false;
        this.l=m.length;
        this.q=$(q);
        this.f=$(z);
        this.r=$(this.info);
        this.o=parseInt(TINY.style.val(z,'width'));
        if (this.thumbs) {
            var u=$(this.left),r=$(this.right);
            u.onmouseover=new Function('TINY.scroll.init("'+this.thumbs+'",-1,'+this.scrollSpeed+')');
            u.onmouseout=r.onmouseout=new Function('TINY.scroll.cl("'+this.thumbs+'")');
            r.onmouseover=new Function('TINY.scroll.init("'+this.thumbs+'",1,'+this.scrollSpeed+')');
            this.p=$(this.thumbs)
        }

        for (i; i<this.l; i++) {
            this.a[i]= {};
            var h=m[i],a=this.a[i];
            a.t=$$('h3',h)[0].innerHTML;
            a.d=$$('p',h)[0].innerHTML;
            a.l=$$('a',h)[0]?$$('a',h)[0].href:'';
            a.p=$$('span',h)[0].innerHTML;
            if (this.thumbs) {
                    var g=$$('img',h)[0];
                    this.p.appendChild(g);
                    w+=parseInt(g.offsetWidth);
                    if (i!=this.l-1) {
                        g.style.marginRight=this.spacing+'px';
                        w+=this.spacing
                    }
                    this.p.style.width=w+'px';
                    g.style.opacity=this.thumbOpacity/100;
                    g.style.filter='alpha(opacity='+this.thumbOpacity+')';
                    g.onmouseover=new Function('TINY.alpha.set(this,100,5)');
                    g.onmouseout=new Function('TINY.alpha.set(this,'+this.thumbOpacity+',5)');
                    g.onclick=new Function(this.n+'.pr('+i+',1)');
            }
        }

        if (b&&f) {
            b=$(b);
            f=$(f);
            b.style.opacity=f.style.opacity=this.navOpacity/100;
            b.style.filter=f.style.filter='alpha(opacity='+this.navOpacity+')';
            b.onmouseover=f.onmouseover=new Function('TINY.alpha.set(this,'+this.navHover+',5)');
            b.onmouseout=f.onmouseout=new Function('TINY.alpha.set(this,'+this.navOpacity+',5)');
            b.onclick=new Function(this.n+'.mv(-1,1)');
            f.onclick=new Function(this.n+'.mv(1,1)');
        }

        if (this.auto) {
            this.is(0, 0);
            this.running=true;
            //$("startstop").src="/images/slideshow/pause.png";
        } else {
            this.is(0, 1);
            this.running=false;
            //$("startstop").src="/images/slideshow/play.png";
        }
    },

    toggle: function() {
        if (!this.running) {
            this.is(0, 0);
            this.running=true;
            //$("startstop").src="/images/slideshow/pause.png";
        } else {
            if (this.lt) clearTimeout(this.lt);
            if (this.at) clearTimeout(this.at);
            this.running=false;
            //$("startstop").src="/images/slideshow/play.png";
        }
    },

    stop_all: function() {
        if (this.lt) clearTimeout(this.lt);
        if (this.at) clearTimeout(this.at);
    },

    mv: function(d,c) {
        var t=this.c+d;
        this.c=t=t<0?this.l-1:t>this.l-1?0:t;
        this.pr(t,c)
    },

    pr: function(t,c) {
            clearTimeout(this.lt);
            if (c) {
                clearTimeout(this.at);
            }
            this.c=t;
            this.is(t,c);
    },

    is: function(s,c) {
        if(this.info) {
            TINY.height.set(this.r,1,this.infoSpeed/2,-1); 
        }

        var i=new Image();
        i.style.opacity=0;
        i.style.filter='alpha(opacity=0)';
        this.i=i;
        i.onload=new Function(this.n+'.le('+s+','+c+')');
        i.src=this.a[s].p;
        if(this.thumbs) {
            var a=$$('img',this.p),l=a.length,x=0;
            for(x; x<l; x++) {
                a[x].style.borderColor=x!=s?'':this.active
            }
        }

    },

    le: function(s,c) {
        this.f.appendChild(this.i);
        var w=this.o-parseInt(this.i.offsetWidth);
        if (w>0) {
            var l=Math.floor(w/2);
            this.i.style.borderLeft=l+'px solid '+this.letterbox;
            this.i.style.borderRight=(w-l)+'px solid '+this.letterbox
        }

        TINY.alpha.set(this.i,100,this.imgSpeed);
        var n=new Function(this.n+'.nf('+s+')');
        this.lt=setTimeout(n,this.imgSpeed*100);
        if (!c) {
            this.at=setTimeout(new Function(this.n+'.mv(1,0)'),this.speed*1000);
        }

        if (this.a[s].l!='') {
            this.q.onclick=new Function('window.location="'+this.a[s].l+'"');
            this.q.onmouseover=new Function('this.className="'+this.link+'"');
            this.q.onmouseout=new Function('this.className=""');
            this.q.style.cursor='pointer';
        } else {
            this.q.onclick=this.q.onmouseover=null;
            this.q.style.cursor='default';
        }

        var m=$$('img',this.f);
        //if (m.length>2) {
        if (m.length>1) {
            this.f.removeChild(m[0]);
        }
    }, 

    nf: function(s) {
        if(this.info) {
            s=this.a[s];
            $$('h3',this.r)[0].innerHTML=s.t;
            $$('p',this.r)[0].innerHTML=s.d;
            this.r.style.height='auto';
            var h=parseInt(this.r.offsetHeight);
            this.r.style.height=0;
            TINY.height.set(this.r,h,this.infoSpeed,0);
        }
    }
};

TINY.scroll=function() {
    return {
	init: function(e,d,s) {
            e=typeof e=='object'?e:$(e);
            var p=e.style.left||TINY.style.val(e,'left');
            e.style.left=p;
            var l=d==1?parseInt(e.offsetWidth)-parseInt(e.parentNode.offsetWidth):0;
            e.si=setInterval(function() { TINY.scroll.mv(e,l,d,s) }, 20);
        }, 
    
        mv:function(e,l,d,s) {
            var c=parseInt(e.style.left);
            if (c==l) {
                TINY.scroll.cl(e);
            } else {
                var i=Math.abs(l+c);
                i=i<s?i:s;
                var n=c-i*d;
                e.style.left=n+'px';
            }
        },
    
        cl:function(e) {
            e=typeof e=='object'?e:$(e);
            clearInterval(e.si);
        }
    }
}();

TINY.height=function() {
    return {
        set: function(e,h,s,d) {
            e=typeof e=='object'?e:$(e);
            var oh=e.offsetHeight,ho=e.style.height||TINY.style.val(e,'height');
            ho=oh-parseInt(ho);
            var hd=oh-ho>h?-1:1;
            clearInterval(e.si);
            e.si=setInterval(function() { TINY.height.tw(e,h,ho,hd,s) } ,20);
        }, 
    
        tw: function(e,h,ho,hd,s) {
            var oh=e.offsetHeight-ho;
            if(oh==h) {
                clearInterval(e.si)
            } else {
                if (oh!=h) {
                    var foo =oh+(Math.ceil(Math.abs(h-oh)/s)*hd);
                    //console.log("assigning: " + foo);
                    if (foo >= 0) e.style.height = foo + "px";
                }
            }
        }
    }
}();

TINY.alpha=function() {
    return {
	set:function(e,a,s) {
            e=typeof e=='object'?e:$(e);
            var o=e.style.opacity||TINY.style.val(e,'opacity'),d=a>o*100?1:-1;
            e.style.opacity=o;
            clearInterval(e.ai);
            e.ai=setInterval(function() { TINY.alpha.tw(e,a,d,s) } ,20);
        }, 
        
        tw:function(e,a,d,s) {
            var o=Math.round(e.style.opacity*100);
            if(o==a) {
                clearInterval(e.ai)
            } else {
                var n=o+Math.ceil(Math.abs(a-o)/s)*d;
                e.style.opacity=n/100;
                e.style.filter='alpha(opacity='+n+')';
            }
        }
    }
}();

TINY.style=function() {
    return {
        val:function(e,p) {
            e=typeof e=='object'?e:$(e);
            return e.currentStyle?e.currentStyle[p]:document.defaultView.getComputedStyle(e,null).getPropertyValue(p)
        }
    }
}();