// Title: Tigra Fader
// URL: http://www.softcomplex.com/products/tigra_fader/
// Version: 1.0 (compressed)
// Date: 07/23/2007
// Notes: This script is free. Visit official site for further details.

function tFader(a_items,a_labels,a_tpl)
{
    if(!a_items) return alert("items structure is missing");

    if(typeof(a_items)!='object') return alert("format of the items structure is incorrect");

    if(a_items[a_items.length-1]==null) return alert("last element of the items structure is undefined");

    if(!a_labels) return alert("labels structure is missing");

    if(typeof(a_labels)!='object') return alert("format of the labels structure is incorrect");

    if(a_labels[a_labels.length-1]==null) return alert("last element of the labels structure is undefined");

    if(a_labels.length != a_items.length) return alert(a_labels.length + " labels are defined, but there are " + a_items.length + " items defined");

    if(!a_tpl) {
        a_tpl=[];
    }

    for (var i=0;i<A.length;i+=2) {
        if(a_tpl[A[i]]==null) {
            a_tpl[A[i]]=A[i+1];
        }
    }

    this.a_tpl=a_tpl;
    this.a_items=a_tpl.random?P(a_items,a_labels):a_items;
    this.a_labels=a_labels;
    this.n_currentSlide=0;
    this.f_goto=O;
    this.f_run=function(){this.b_running=1;this.f_goto();};
    this.f_stop=function(){this.b_running=0;clearTimeout(this.I);};
    this.f_fadeIn=M;
    this.f_fadeOut=N;
    this.f_slideOp=R;

    if(!window.A_SLIDES)window.A_SLIDES=[];

    this.n_id=window.A_SLIDES.length;
    window.A_SLIDES[this.n_id]=this;
    var K=' '+(a_tpl['css']?' class="'+a_tpl['css']+'"':'')+(a_tpl['width']?' width="'+a_tpl['width']+'"':'')+(a_tpl['height']?' height="'+a_tpl['height']+'"':'')+(a_tpl['alt']?' title="'+a_tpl['alt']+'" alt="'+a_tpl['alt']+'"':'');
    this.a_imgRefs=[];
    document.write('<img src="',this.a_items[0],'" alt="',this.a_labels[0],'"',K,' name="tslide',this.n_id,'_0" />');
    firstLabel = this.a_labels[0];
    this.a_imgRefs[0]=document.images['tslide'+this.n_id+'_0'];
    this.n_currentSlide=0;

    if(!this.a_imgRefs[0]||!this.a_imgRefs[0].style||this.a_imgRefs[0].style.marginLeft==null)return;

    for(var i=1;i<this.a_items.length;i++) {
        document.write('<img src="',this.a_items[i],'" alt="',this.a_labels[i],'"',K,' name="tslide',this.n_id,'_',i,'" style="position:relative;z-index:-1;filter:alpha(opacity=100);" />');
        this.a_imgRefs[i]=document.images['tslide'+this.n_id+'_'+i];
        this.a_imgRefs[i].style.marginLeft='-'+this.a_tpl.width+'px';
        this.f_slideOp(i,0);
        this.a_imgRefs[i].style.zIndex=i;
    }

    this.H=Math.round(this.a_tpl['transtime']*1e3/this.a_tpl['steps']);
    this.D=Math.round(100/this.a_tpl['steps']);
    this.f_run();
}


function O(G,C)
{
    if(this.I) {
        clearTimeout(this.I);
        this.I=null;
        if(this.n_nextSlide){
            this.f_slideOp(this.n_nextSlide,0);
            this.n_nextSlide=null;
        }
    }
    this.n_nextSlide=(G==null?this.n_currentSlide+1:G)%this.a_items.length;

    if(this.n_nextSlide==this.n_currentSlide) return;

    this.I=setTimeout('A_SLIDES['+this.n_id+'].f_fade'+(this.n_nextSlide>this.n_currentSlide?'In':'Out')+'()',(C?0:this.a_tpl['slidetime']*1e3));

    // labeling goes here
    // alert(document.getElementById('PhotoTagText').firstChild.nodeType);
    if (document.getElementById('PhotoTagText') && document.getElementById('PhotoTagText').firstChild && typeof(document.getElementById('PhotoTagText').firstChild) == 'object') {
        var PhotoTagText = document.getElementById('PhotoTagText').firstChild;
        PhotoTagText.replaceData(0,PhotoTagText.length, document.images['tslide'+this.n_id+'_'+this.n_currentSlide].alt);
    }
}


function M(F)
{
    if(F==null){F=0;}

    F+=this.D;

    if(F>99) {
        this.f_slideOp(this.n_nextSlide,99);
        this.f_slideOp(this.n_currentSlide,0);
        this.n_currentSlide=this.n_nextSlide;
        this.n_nextSlide=null;
        return this.f_run();
    }

    this.f_slideOp(this.n_nextSlide,F);
    this.J=setTimeout('A_SLIDES['+this.n_id+'].f_fadeIn('+F+')',this.H);
}


function N(F)
{
    if(F==null) {
        F=99;
        this.f_slideOp(this.n_nextSlide,99);
    }

    F-=this.D;

    if(F<0) {
        this.f_slideOp(this.n_currentSlide,0);
        this.n_currentSlide=this.n_nextSlide;
        this.n_nextSlide=null;
        return this.f_run();
    }

    this.f_slideOp(this.n_currentSlide,F);
    this.J=setTimeout('A_SLIDES['+this.n_id+'].f_fadeOut('+F+')',this.H);
}


function R(G,F)
{
    if(!G) return;
    var e_slide=this.a_imgRefs[G];
    Q(e_slide,F);
}


function P(B,L)
{
    var n_index,o_index,a_items=[],ta_labels=[];

    // since arrays are passed by reference, we'll make a manual copy
    for (var i=0; i< L.length; ++i) {
        ta_labels[i] = L[i];
    }
    // now handle the randomization bit
    while(B.length) {
        n_index=Math.ceil(Math.random()*B.length)-1;
        o_index=a_items.length;
        a_items[o_index]=B[n_index];
        L[o_index]=ta_labels[n_index];
        B[n_index]=B[B.length-1];
        ta_labels[n_index]=ta_labels[ta_labels.length-1];
        B.length=B.length-1;
        ta_labels.length=ta_labels.length-1;
    }

    return a_items;
}

var L=navigator.userAgent.toLowerCase();

if(L.indexOf('opera')!=-1||L.indexOf('safari')!=-1)window.Q=function(e_element,F){e_element.style.opacity=F/100;};
else if(L.indexOf('gecko')!=-1)window.Q=function(e_element,F){e_element.style.MozOpacity=F/100;};
else if(L.indexOf('msie')!=-1)window.Q=function(e_element,F){try{e_element.filters.alpha.opacity=F}catch(e){};};
else window.Q=null;

var A=['steps',40,'css','','transtime',0.5,'slidetime',2];

var firstLabel = '';