gallery.js for information bar fade in/out

var TINY={};

function tid(i){ return document.getElementById(i); }
function tag(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='#000';
    this.n=n;
    this.c=0;
    this.a=[]
};

TINY.slideshow.prototype={
    init:function(s,z,b,f,q){
        s=tid(s);
        var m= tag('li',s), i=0, w=0;
        this.l=m.length;
        this.q=tid(q);
        this.f=tid(z);
        this.r=tid(this.info);
        this.o=parseInt(TINY.style.val(z,'width'));

        if(this.thumbs){
            var u=tid(this.left), r=tid(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=tid(this.thumbs)
        }

        for(i;i<this.l;i++){
            this.a[i]={};
            var h=m[i], a=this.a[i];
            a.t= tag('h3',h)[0].innerHTML;
            a.d= tag('p',h)[0].innerHTML;
            a.l= tag('a',h)[0]? tag('a',h)[0].href:'';
            a.tg = tag('a',h)[0] != '' ? tag('a',h)[0].target:'_self';
            a.p= tag('span',h)[0].innerHTML;
            if(this.thumbs){
                var g = tag('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=tid(b);
            f=tid(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)');
        }
        this.auto?this.is(0,0):this.is(0,1)
    },
    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)
            TINY.alpha.set(this.r,0,this.infoSpeed);

        }
        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+')');
        string = this.a[s].p;
        string = string.replace(/&amp;/g, '&');
        i.src = string;
        if(this.thumbs){
            var a= tag('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);
        }
        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 != ""){
            var baseURL = this.a[s].l;
            var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
            var urlType = baseURL.toLowerCase().match(urlString);

            if (this.imagesthickbox == "true" && (urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp')) {
                this.q.onclick = new Function('jQuery.colorbox({href:"' + this.a[s].l + '",maxWidth:"90%",maxHeight:"90%",title:"' + this.a[s].t + '"})');
            } else {
                this.q.onclick = new Function('window.open("' + this.a[s].l + '","' + this.a[s].tg + '")');
            }

            this.q.onmouseover = new Function('this.className="' + this.linkclass + '"');
            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= tag('img',this.f);
        if(m.length >= 2){
            this.f.removeChild(m[0])
        }
    },
    nf:function(s){
        if(this.info){
            s=this.a[s];
            tag('h3',this.r)[0].innerHTML=s.t;
            tag('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)
            this.r.style.height = h;
            TINY.alpha.set(this.r,100,this.infoSpeed);
        }
    }
};

TINY.scroll=function(){
    return{
        init:function(e,d,s){
            e=typeof e=='object'?e: tid(e); var p=e.style.left||TINY.style.val(e,'left'); e.style.left=p;
            var l = (d==1) ? Math.abs(parseInt(e.offsetWidth)-parseInt(e.parentNode.offsetWidth)) : 0;

            if ((e.childNodes.length+1)*e.firstChild.width > e.parentNode.offsetWidth) {
                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: tid(e); clearInterval(e.si)}
    }
}();

TINY.height=function(){
    return{
        set:function(e,h,s,d){
            e=typeof e=='object'?e:tid(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){e.style.height=oh+(Math.ceil(Math.abs(h-oh)/s)*hd)+'px'}}
        }
    }
}();

TINY.alpha=function(){
    return{
        set:function(e,a,s){
            e=typeof e=='object'?e:tid(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:tid(e); return e.currentStyle?e.currentStyle[p]:document.defaultView.getComputedStyle(e,null).getPropertyValue(p)}}}();