YAHOO.util.Anim=function(el,attributes,duration,method){
    if(!el){
    }
    this.init(el,attributes,duration,method);
};
YAHOO.util.Anim.prototype={
    toString:function(){
        var el=this.getEl();
        var id=el.id||el.tagName||el;
        return("Anim "+id);
    }
    ,patterns:{
        noNegatives:/width|height|opacity|padding/i,offsetAttribute:/^((width|height)|(top|left))$/,defaultUnit:/width|height|top$|bottom$|left$|right$/i,offsetUnit:/\d+(em|%|en|ex|pt|in|cm|mm|pc)$/i
    }
    ,doMethod:function(attr,start,end){
        return this.method(this.currentFrame,start,end-start,this.totalFrames);
    }
    ,setAttribute:function(attr,val,unit){
        if(this.patterns.noNegatives.test(attr)){
            val=(val>0)?val:0;
        }
        YAHOO.util.Dom.setStyle(this.getEl(),attr,val+unit);
    }
    ,getAttribute:function(attr){
        var el=this.getEl();
        var val=YAHOO.util.Dom.getStyle(el,attr);
        if(val!=='auto'&&!this.patterns.offsetUnit.test(val)){
            return parseFloat(val);
        }
        var a=this.patterns.offsetAttribute.exec(attr)||[];
        var pos=!!(a[3]);
        var box=!!(a[2]);
        if(box||(YAHOO.util.Dom.getStyle(el,'position')=='absolute'&&pos)){
            val=el['offset'+a[0].charAt(0).toUpperCase()+a[0].substr(1)];
        }
        else{
            val=0;
        }
        return val;
    }
    ,getDefaultUnit:function(attr){
        if(this.patterns.defaultUnit.test(attr)){
            return'px';
        }
        return'';
    }
    ,setRuntimeAttribute:function(attr){
        var start;
        var end;
        var attributes=this.attributes;
        this.runtimeAttributes[attr]={
        };
        var isset=function(prop){
            return(typeof prop!=='undefined');
        };
        if(!isset(attributes[attr]['to'])&&!isset(attributes[attr]['by'])){
            return false;
        }
        start=(isset(attributes[attr]['from']))?attributes[attr]['from']:this.getAttribute(attr);
        if(isset(attributes[attr]['to'])){
            end=attributes[attr]['to'];
        }
        else if(isset(attributes[attr]['by'])){
            if(start.constructor==Array){
                end=[];
                for(var i=0,len=start.length;i<len;++i){
                    end[i]=start[i]+attributes[attr]['by'][i]*1;
                }
            }
            else{
                end=start+attributes[attr]['by']*1;
            }
        }
        this.runtimeAttributes[attr].start=start;
        this.runtimeAttributes[attr].end=end;
        this.runtimeAttributes[attr].unit=(isset(attributes[attr].unit))?attributes[attr]['unit']:this.getDefaultUnit(attr);
        return true;
    }
    ,init:function(el,attributes,duration,method){
        var isAnimated=false;
        var startTime=null;
        var actualFrames=0;
        el=YAHOO.util.Dom.get(el);
        this.attributes=attributes||{
        };
        this.duration=!YAHOO.lang.isUndefined(duration)?duration:1;
        this.method=method||YAHOO.util.Easing.easeNone;
        this.useSeconds=true;
        this.currentFrame=0;
        this.totalFrames=YAHOO.util.AnimMgr.fps;
        this.setEl=function(element){
            el=YAHOO.util.Dom.get(element);
        };
        this.getEl=function(){
            return el;
        };
        this.isAnimated=function(){
            return isAnimated;
        };
        this.getStartTime=function(){
            return startTime;
        };
        this.runtimeAttributes={
        };
        this.animate=function(){
            if(this.isAnimated()){
                return false;
            }
            this.currentFrame=0;
            this.totalFrames=(this.useSeconds)?Math.ceil(YAHOO.util.AnimMgr.fps*this.duration):this.duration;
            if(this.duration===0&&this.useSeconds){
                this.totalFrames=1;
            }
            YAHOO.util.AnimMgr.registerElement(this);
            return true;
        };
        this.stop=function(finish){
            if(finish){
                this.currentFrame=this.totalFrames;
                this._onTween.fire();
            }
            YAHOO.util.AnimMgr.stop(this);
        };
        var onStart=function(){
            this.onStart.fire();
            this.runtimeAttributes={
            };
            for(var attr in this.attributes){
                this.setRuntimeAttribute(attr);
            }
            isAnimated=true;
            actualFrames=0;
            startTime=new Date();
        };
        var onTween=function(){
            var data={
                duration:new Date()-this.getStartTime(),currentFrame:this.currentFrame
            };
            data.toString=function(){
                return('duration: '+data.duration+', currentFrame: '+data.currentFrame);
            };
            this.onTween.fire(data);
            var runtimeAttributes=this.runtimeAttributes;
            for(var attr in runtimeAttributes){
                this.setAttribute(attr,this.doMethod(attr,runtimeAttributes[attr].start,runtimeAttributes[attr].end),runtimeAttributes[attr].unit);
            }
            actualFrames+=1;
        };
        var onComplete=function(){
            var actual_duration=(new Date()-startTime)/1000;
            var data={
                duration:actual_duration,frames:actualFrames,fps:actualFrames/actual_duration
            };
            data.toString=function(){
                return('duration: '+data.duration+', frames: '+data.frames+', fps: '+data.fps);
            };
            isAnimated=false;
            actualFrames=0;
            this.onComplete.fire(data);
        };
        this._onStart=new YAHOO.util.CustomEvent('_start',this,true);
        this.onStart=new YAHOO.util.CustomEvent('start',this);
        this.onTween=new YAHOO.util.CustomEvent('tween',this);
        this._onTween=new YAHOO.util.CustomEvent('_tween',this,true);
        this.onComplete=new YAHOO.util.CustomEvent('complete',this);
        this._onComplete=new YAHOO.util.CustomEvent('_complete',this,true);
        this._onStart.subscribe(onStart);
        this._onTween.subscribe(onTween);
        this._onComplete.subscribe(onComplete);
    }
};
YAHOO.util.AnimMgr=new function(){
    var thread=null;
    var queue=[];
    var tweenCount=0;
    this.fps=1000;
    this.delay=1;
    this.registerElement=function(tween){
        queue[queue.length]=tween;
        tweenCount+=1;
        tween._onStart.fire();
        this.start();
    };
    this.unRegister=function(tween,index){
        tween._onComplete.fire();
        index=index||getIndex(tween);
        if(index==-1){
            return false;
        }
        queue.splice(index,1);
        tweenCount-=1;
        if(tweenCount<=0){
            this.stop();
        }
        return true;
    };
    this.start=function(){
        if(thread===null){
            thread=setInterval(this.run,this.delay);
        }
    };
    this.stop=function(tween){
        if(!tween){
            clearInterval(thread);
            for(var i=0,len=queue.length;i<len;++i){
                if(queue[0].isAnimated()){
                    this.unRegister(queue[0],0);
                }
            }
            queue=[];
            thread=null;
            tweenCount=0;
        }
        else{
            this.unRegister(tween);
        }
    };
    this.run=function(){
        for(var i=0,len=queue.length;i<len;++i){
            var tween=queue[i];
            if(!tween||!tween.isAnimated()){
                continue;
            }
            if(tween.currentFrame<tween.totalFrames||tween.totalFrames===null){
                tween.currentFrame+=1;
                if(tween.useSeconds){
                    correctFrame(tween);
                }
                tween._onTween.fire();
            }
            else{
                YAHOO.util.AnimMgr.stop(tween,i);
            }
        }
    };
    var getIndex=function(anim){
        for(var i=0,len=queue.length;i<len;++i){
            if(queue[i]==anim){
                return i;
            }
        }
        return-1;
    };
    var correctFrame=function(tween){
        var frames=tween.totalFrames;
        var frame=tween.currentFrame;
        var expected=(tween.currentFrame*tween.duration*1000/tween.totalFrames);
        var elapsed=(new Date()-tween.getStartTime());
        var tweak=0;
        if(elapsed<tween.duration*1000){
            tweak=Math.round((elapsed/expected-1)*tween.currentFrame);
        }
        else{
            tweak=frames-(frame+1);
        }
        if(tweak>0&&isFinite(tweak)){
            if(tween.currentFrame+tweak>=frames){
                tweak=frames-(frame+1);
            }
            tween.currentFrame+=tweak;
        }
    };
};
YAHOO.util.Bezier=new function(){
    this.getPosition=function(points,t){
        var n=points.length;
        var tmp=[];
        for(var i=0;i<n;++i){
            tmp[i]=[points[i][0],points[i][1]];
        }
        for(var j=1;j<n;++j){
            for(i=0;i<n-j;++i){
                tmp[i][0]=(1-t)*tmp[i][0]+t*tmp[parseInt(i+1,10)][0];
                tmp[i][1]=(1-t)*tmp[i][1]+t*tmp[parseInt(i+1,10)][1];
            }
        }
        return[tmp[0][0],tmp[0][1]];
    };
};
(function(){
    YAHOO.util.ColorAnim=function(el,attributes,duration,method){
        YAHOO.util.ColorAnim.superclass.constructor.call(this,el,attributes,duration,method);
    };
    YAHOO.extend(YAHOO.util.ColorAnim,YAHOO.util.Anim);
    var Y=YAHOO.util;
    var superclass=Y.ColorAnim.superclass;
    var proto=Y.ColorAnim.prototype;
    proto.toString=function(){
        var el=this.getEl();
        var id=el.id||el.tagName;
        return("ColorAnim "+id);
    };
    proto.patterns.color=/color$/i;
    proto.patterns.rgb=/^rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)$/i;
    proto.patterns.hex=/^#?([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i;
    proto.patterns.hex3=/^#?([0-9A-F]{1})([0-9A-F]{1})([0-9A-F]{1})$/i;
    proto.patterns.transparent=/^transparent|rgba\(0, 0, 0, 0\)$/;
    proto.parseColor=function(s){
        if(s.length==3){
            return s;
        }
        var c=this.patterns.hex.exec(s);
        if(c&&c.length==4){
            return[parseInt(c[1],16),parseInt(c[2],16),parseInt(c[3],16)];
        }
        c=this.patterns.rgb.exec(s);
        if(c&&c.length==4){
            return[parseInt(c[1],10),parseInt(c[2],10),parseInt(c[3],10)];
        }
        c=this.patterns.hex3.exec(s);
        if(c&&c.length==4){
            return[parseInt(c[1]+c[1],16),parseInt(c[2]+c[2],16),parseInt(c[3]+c[3],16)];
        }
        return null;
    };
    proto.getAttribute=function(attr){
        var el=this.getEl();
        if(this.patterns.color.test(attr)){
            var val=YAHOO.util.Dom.getStyle(el,attr);
            if(this.patterns.transparent.test(val)){
                var parent=el.parentNode;
                val=Y.Dom.getStyle(parent,attr);
                while(parent&&this.patterns.transparent.test(val)){
                    parent=parent.parentNode;
                    val=Y.Dom.getStyle(parent,attr);
                    if(parent.tagName.toUpperCase()=='HTML'){
                        val='#fff';
                    }
                }
            }
        }
        else{
            val=superclass.getAttribute.call(this,attr);
        }
        return val;
    };
    proto.doMethod=function(attr,start,end){
        var val;
        if(this.patterns.color.test(attr)){
            val=[];
            for(var i=0,len=start.length;i<len;++i){
                val[i]=superclass.doMethod.call(this,attr,start[i],end[i]);
            }
            val='rgb('+Math.floor(val[0])+','+Math.floor(val[1])+','+Math.floor(val[2])+')';
        }
        else{
            val=superclass.doMethod.call(this,attr,start,end);

        }
        return val;
    };
    proto.setRuntimeAttribute=function(attr){
        superclass.setRuntimeAttribute.call(this,attr);
        if(this.patterns.color.test(attr)){
            var attributes=this.attributes;
            var start=this.parseColor(this.runtimeAttributes[attr].start);
            var end=this.parseColor(this.runtimeAttributes[attr].end);
            if(typeof attributes[attr]['to']==='undefined'&&typeof attributes[attr]['by']!=='undefined'){
                end=this.parseColor(attributes[attr].by);
                for(var i=0,len=start.length;i<len;++i){
                    end[i]=start[i]+end[i];
                }
            }
            this.runtimeAttributes[attr].start=start;
            this.runtimeAttributes[attr].end=end;
        }
    };
}
)();
YAHOO.util.Easing={
    easeNone:function(t,b,c,d){
        return c*t/d+b;
    }
    ,easeIn:function(t,b,c,d){
        return c*(t/=d)*t+b;
    }
    ,easeOut:function(t,b,c,d){
        return-c*(t/=d)*(t-2)+b;
    }
    ,easeBoth:function(t,b,c,d){
        if((t/=d/2)<1){
            return c/2*t*t+b;
        }
        return-c/2*((--t)*(t-2)-1)+b;
    }
    ,easeInStrong:function(t,b,c,d){
        return c*(t/=d)*t*t*t+b;
    }
    ,easeOutStrong:function(t,b,c,d){
        return-c*((t=t/d-1)*t*t*t-1)+b;
    }
    ,easeBothStrong:function(t,b,c,d){
        if((t/=d/2)<1){
            return c/2*t*t*t*t+b;
        }
        return-c/2*((t-=2)*t*t*t-2)+b;
    }
    ,elasticIn:function(t,b,c,d,a,p){
        if(t==0){
            return b;
        }
        if((t/=d)==1){
            return b+c;
        }
        if(!p){
            p=d*.3;
        }
        if(!a||a<Math.abs(c)){
            a=c;
            var s=p/4;
        }
        else{
            var s=p/(2*Math.PI)*Math.asin(c/a);
        }
        return-(a*Math.pow(2,10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p))+b;
    }
    ,elasticOut:function(t,b,c,d,a,p){
        if(t==0){
            return b;
        }
        if((t/=d)==1){
            return b+c;
        }
        if(!p){
            p=d*.3;
        }
        if(!a||a<Math.abs(c)){
            a=c;
            var s=p/4;
        }
        else{
            var s=p/(2*Math.PI)*Math.asin(c/a);
        }
        return a*Math.pow(2,-10*t)*Math.sin((t*d-s)*(2*Math.PI)/p)+c+b;
    }
    ,elasticBoth:function(t,b,c,d,a,p){
        if(t==0){
            return b;
        }
        if((t/=d/2)==2){
            return b+c;
        }
        if(!p){
            p=d*(.3*1.5);
        }
        if(!a||a<Math.abs(c)){
            a=c;
            var s=p/4;
        }
        else{
            var s=p/(2*Math.PI)*Math.asin(c/a);
        }
        if(t<1){
            return-.5*(a*Math.pow(2,10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p))+b;
        }
        return a*Math.pow(2,-10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p)*.5+c+b;
    }
    ,backIn:function(t,b,c,d,s){
        if(typeof s=='undefined'){
            s=1.70158;
        }
        return c*(t/=d)*t*((s+1)*t-s)+b;
    }
    ,backOut:function(t,b,c,d,s){
        if(typeof s=='undefined'){
            s=1.70158;
        }
        return c*((t=t/d-1)*t*((s+1)*t+s)+1)+b;
    }
    ,backBoth:function(t,b,c,d,s){
        if(typeof s=='undefined'){
            s=1.70158;
        }
        if((t/=d/2)<1){
            return c/2*(t*t*(((s*=(1.525))+1)*t-s))+b;
        }
        return c/2*((t-=2)*t*(((s*=(1.525))+1)*t+s)+2)+b;
    }
    ,bounceIn:function(t,b,c,d){
        return c-YAHOO.util.Easing.bounceOut(d-t,0,c,d)+b;
    }
    ,bounceOut:function(t,b,c,d){
        if((t/=d)<(1/2.75)){
            return c*(7.5625*t*t)+b;
        }
        else if(t<(2/2.75)){
            return c*(7.5625*(t-=(1.5/2.75))*t+.75)+b;
        }
        else if(t<(2.5/2.75)){
            return c*(7.5625*(t-=(2.25/2.75))*t+.9375)+b;
        }
        return c*(7.5625*(t-=(2.625/2.75))*t+.984375)+b;
    }
    ,bounceBoth:function(t,b,c,d){
        if(t<d/2){
            return YAHOO.util.Easing.bounceIn(t*2,0,c,d)*.5+b;
        }
        return YAHOO.util.Easing.bounceOut(t*2-d,0,c,d)*.5+c*.5+b;
    }
};
(function(){
    YAHOO.util.Motion=function(el,attributes,duration,method){
        if(el){
            YAHOO.util.Motion.superclass.constructor.call(this,el,attributes,duration,method);
        }
    };
    YAHOO.extend(YAHOO.util.Motion,YAHOO.util.ColorAnim);
    var Y=YAHOO.util;
    var superclass=Y.Motion.superclass;
    var proto=Y.Motion.prototype;
    proto.toString=function(){
        var el=this.getEl();
        var id=el.id||el.tagName;
        return("Motion "+id);
    };
    proto.patterns.points=/^points$/i;
    proto.setAttribute=function(attr,val,unit){
        if(this.patterns.points.test(attr)){
            unit=unit||'px';
            superclass.setAttribute.call(this,'left',val[0],unit);
            superclass.setAttribute.call(this,'top',val[1],unit);
        }
        else{
            superclass.setAttribute.call(this,attr,val,unit);
        }
    };
    proto.getAttribute=function(attr){
        if(this.patterns.points.test(attr)){
            var val=[superclass.getAttribute.call(this,'left'),superclass.getAttribute.call(this,'top')];
        }
        else{
            val=superclass.getAttribute.call(this,attr);
        }
        return val;
    };
    proto.doMethod=function(attr,start,end){
        var val=null;
        if(this.patterns.points.test(attr)){
            var t=this.method(this.currentFrame,0,100,this.totalFrames)/100;
            val=Y.Bezier.getPosition(this.runtimeAttributes[attr],t);
        }
        else{
            val=superclass.doMethod.call(this,attr,start,end);
        }
        return val;
    };
    proto.setRuntimeAttribute=function(attr){
        if(this.patterns.points.test(attr)){
            var el=this.getEl();
            var attributes=this.attributes;
            var start;
            var control=attributes['points']['control']||[];
            var end;
            var i,len;
            if(control.length>0&&!(control[0]instanceof Array)){
                control=[control];
            }
            else{
                var tmp=[];
                for(i=0,len=control.length;i<len;++i){
                    tmp[i]=control[i];
                }
                control=tmp;
            }
            if(Y.Dom.getStyle(el,'position')=='static'){
                Y.Dom.setStyle(el,'position','relative');
            }
            if(isset(attributes['points']['from'])){
                Y.Dom.setXY(el,attributes['points']['from']);
            }
            else{
                Y.Dom.setXY(el,Y.Dom.getXY(el));
            }
            start=this.getAttribute('points');
            if(isset(attributes['points']['to'])){
                end=translateValues.call(this,attributes['points']['to'],start);
                var pageXY=Y.Dom.getXY(this.getEl());
                for(i=0,len=control.length;i<len;++i){
                    control[i]=translateValues.call(this,control[i],start);
                }
            }
            else if(isset(attributes['points']['by'])){
                end=[start[0]+attributes['points']['by'][0],start[1]+attributes['points']['by'][1]];
                for(i=0,len=control.length;i<len;++i){
                    control[i]=[start[0]+control[i][0],start[1]+control[i][1]];
                }
            }
            this.runtimeAttributes[attr]=[start];
            if(control.length>0){
                this.runtimeAttributes[attr]=this.runtimeAttributes[attr].concat(control);
            }
            this.runtimeAttributes[attr][this.runtimeAttributes[attr].length]=end;
        }
        else{
            superclass.setRuntimeAttribute.call(this,attr);
        }
    };
    var translateValues=function(val,start){
        var pageXY=Y.Dom.getXY(this.getEl());
        val=[val[0]-pageXY[0]+start[0],val[1]-pageXY[1]+start[1]];
        return val;
    };
    var isset=function(prop){
        return(typeof prop!=='undefined');
    };
}
)();
(function(){
    YAHOO.util.Scroll=function(el,attributes,duration,method){
        if(el){
            YAHOO.util.Scroll.superclass.constructor.call(this,el,attributes,duration,method);
        }
    };
    YAHOO.extend(YAHOO.util.Scroll,YAHOO.util.ColorAnim);
    var Y=YAHOO.util;
    var superclass=Y.Scroll.superclass;
    var proto=Y.Scroll.prototype;
    proto.toString=function(){
        var el=this.getEl();
        var id=el.id||el.tagName;
        return("Scroll "+id);
    };
    proto.doMethod=function(attr,start,end){
        var val=null;
        if(attr=='scroll'){
            val=[this.method(this.currentFrame,start[0],end[0]-start[0],this.totalFrames),this.method(this.currentFrame,start[1],end[1]-start[1],this.totalFrames)];
        }
        else{
            val=superclass.doMethod.call(this,attr,start,end);
        }
        return val;
    };
    proto.getAttribute=function(attr){
        var val=null;
        var el=this.getEl();
        if(attr=='scroll'){
            val=[el.scrollLeft,el.scrollTop];
        }
        else{
            val=superclass.getAttribute.call(this,attr);
        }
        return val;
    };
    proto.setAttribute=function(attr,val,unit){
        var el=this.getEl();
        if(attr=='scroll'){
            el.scrollLeft=val[0];
            el.scrollTop=val[1];
        }
        else{
            superclass.setAttribute.call(this,attr,val,unit);
        }
    };
}
)();
YAHOO.register("animation",YAHOO.util.Anim,{
    version:"2.3.0",build:"442"
}
);