function lib_bwcheck(){ //Browsercheck (needed)
        this.ver=navigator.appVersion
        this.agent=navigator.userAgent
        this.dom=document.getElementById?1:0
        this.opera5=this.agent.indexOf("Opera 5")>-1
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
        this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
        this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6
        this.mac=this.agent.indexOf("Mac")>-1
        this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || 
this.opera5)
        return this
}
var bw=new lib_bwcheck()
var numScrollPages = 4
var transitionOut = 1;
var transitionIn = 2;
var slideAcceleration = 0.2;

if(document.layers){ //NS4 resize fix...
        scrX= innerWidth; scrY= innerHeight;
        onresize= function(){if(scrX!= innerWidth || scrY!= 
innerHeight){history.go(0)} }
}


function scrollerobj(obj,nest){
        nest = (!nest)?"":'document.'+nest+'.'
        this.elm = 
bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):document.getElementById(obj)
        this.css = bw.ns4?this.elm:this.elm.style
        this.doc = bw.ns4?this.elm.document:document
        this.obj = obj+'scrollerobj'; eval(this.obj+'=this')
        this.x = (bw.ns4||bw.opera5)?this.css.left:this.elm.offsetLeft
        this.y = (bw.ns4||bw.opera5)?this.css.top:this.elm.offsetTop
        this.w = 
(bw.ie4||bw.ie5||bw.ie6||bw.ns6)?this.elm.offsetWidth:bw.ns4?this.elm.clip.width:bw.opera5?this.css.pixelWidth:0
        this.h = 
(bw.ie4||bw.ie5||bw.ie6||bw.ns6)?this.elm.offsetHeight:bw.ns4?this.elm.clip.height:bw.opera5?this.css.pixelHeight:0
}


scrollerobj.prototype.moveTo = function(x,y){
        if(x!=null){this.x=x; this.css.left=x}
        if(y!=null){this.y=y; this.css.top=y}
}
scrollerobj.prototype.moveBy = function(x,y){this.moveTo(this.x+x,this.y+y)}
scrollerobj.prototype.hideIt = function(){this.css.visibility='hidden'}
scrollerobj.prototype.showIt = function(){this.css.visibility='visible'}

var scrollTimer = null;
function scroll(step){
        clearTimeout(scrollTimer);
        if ( !busy && (step<0&&activePage.y+activePage.h>scroller1.h || 
step>0&&activePage.y<0) ){
                activePage.moveBy(0,step);
                scrollTimer = setTimeout('scroll('+step+')',40);
        }
}
function stopScroll(){
        clearTimeout(scrollTimer);
}


var activePage = null;
var busy = 0;
function activate(num){
        if (activePage!=pages[num] && !busy){
                busy = 1;
                if (transitionOut==0 || !bw.opacity){ activePage.hideIt(); 
activateContinue(num); }
                else if (transitionOut==1) activePage.blend('hidden', 
'activateContinue('+num+')');
        }
}
function activateContinue(num){
        busy = 1;
        activePage = pages[num];
        activePage.moveTo(0,0);
        if (transitionIn==0 || !bw.opacity){ activePage.showIt(); busy=0; }
        else if (transitionIn==1) activePage.blend('visible', 'busy=0');
        else if (transitionIn==2) activePage.slide(0, slideAcceleration, 40, 
'busy=0');
}



scrollerobj.prototype.slide = function(target, acceleration, time, fn){
        this.slideFn= fn?fn:null;
        this.moveTo(0,scroller1.h);
        if (bw.ie4&&!bw.mac) this.css.filter = 'alpha(opacity=100)';
        if (bw.ns6) this.css.MozOpacity = 1;
        this.showIt();
        this.doSlide(target, acceleration, time);
}
scrollerobj.prototype.doSlide = function(target, acceleration, time){
        this.step = Math.round(this.y*acceleration);
        if (this.step<1) this.step = 1;
        if (this.step>this.y) this.step = this.y;
        this.moveBy(0, -this.step);
        if (this.y>0) this.slideTim = 
setTimeout(this.obj+'.doSlide('+target+','+acceleration+','+time+')', time);
        else {  
                eval(this.slideFn);
                this.slideFn = null;
        }
}

scrollerobj.prototype.blend= function(vis, fn){
        if (bw.ie5||bw.ie6 && !bw.mac) {
                if (vis=='visible') this.css.filter= 'blendTrans(duration=0.9)';
                else this.css.filter= 'blendTrans(duration=0.1)'; //durata del fade
                this.elm.onfilterchange = function(){ eval(fn); };
                this.elm.filters.blendTrans.apply();
                this.css.visibility= vis;
                this.elm.filters.blendTrans.play();
        }
        else if (bw.ns6 || bw.ie&&!bw.mac){
                this.css.visibility= 'visible';
                vis=='visible' ? this.fadeTo(100, 7, 40, fn) : this.fadeTo(0, 9, 40, fn);
        }
        else {
                this.css.visibility= vis;
                eval(fn);
        }
};

scrollerobj.prototype.op= 100;
scrollerobj.prototype.opacityTim= null;
scrollerobj.prototype.setOpacity= function(num){
        this.css.filter= 'alpha(opacity='+num+')';
        this.css.MozOpacity= num/100;
        this.op= num;
}
scrollerobj.prototype.fadeTo= function(target, step, time, fn){
        clearTimeout(this.opacityTim);
        this.opacityFn= fn?fn:null;
        this.op = target==100 ? 0 : 100;
        this.fade(target, step, time);
}
scrollerobj.prototype.fade= function(target, step, time){
        if (Math.abs(target-this.op)>step){
                target>this.op? this.setOpacity(this.op+step):this.setOpacity(this.op-step);
                this.opacityTim= 
setTimeout(this.obj+'.fade('+target+','+step+','+time+')', time);
        }
        else {
                this.setOpacity(target);
                eval(this.opacityFn);
                this.opacityFn= null;
        }
}
var pageslidefadeLoaded = 0;
function initPageSlideFade(){
        scroller1 = new scrollerobj('divScroller1');
        
        pages = new Array();
        pages[0] = null;
        for (var i=1; i<=numScrollPages; i++){
                pages[i] = new scrollerobj('dynPage'+i, 'divScroller1');
                pages[i].moveTo(0,0);
        }
        bw.opacity = ( bw.ie && !bw.ie4 && 
navigator.userAgent.indexOf('Windows')>-1 ) || bw.ns6
        if (bw.ie5||bw.ie6 && !bw.mac) pages[1].css.filter= 
'blendTrans(duration=0.9)'; // Loads the windows 9.x filters module.
        activateContinue(1);

        if (bw.ie) for(var i=0;i<document.links.length;i++) 
document.links[i].onfocus=document.links[i].blur;
        pageslidefadeLoaded = 1;
}

if(bw.bw && !pageslidefadeLoaded) onload = initPageSlideFade;