//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2008 Valerio Proietti, <http://mad4milk.net>, MIT Style License.

Fx.Scroll=new Class({Extends:Fx,options:{offset:{'x':0,'y':0},wheelStops:true},initialize:function(element,options){this.element=this.subject=$(element);this.parent(options);var cancel=this.cancel.bind(this,false);if($type(this.element)!='element')this.element=$(this.element.getDocument().body);var stopper=this.element;if(this.options.wheelStops){this.addEvent('start',function(){stopper.addEvent('mousewheel',cancel);},true);this.addEvent('complete',function(){stopper.removeEvent('mousewheel',cancel);},true);}},set:function(){var now=Array.flatten(arguments);this.element.scrollTo(now[0],now[1]);},compute:function(from,to,delta){var now=[];var x=2;x.times(function(i){now.push(Fx.compute(from[i],to[i],delta));});return now;},start:function(x,y){if(!this.check(arguments.callee,x,y))return this;var offsetSize=this.element.getSize(),scrollSize=this.element.getScrollSize();var scroll=this.element.getScroll(),values={x:x,y:y};for(var z in values){var max=scrollSize[z]-offsetSize[z];if($chk(values[z]))values[z]=($type(values[z])=='number')?values[z].limit(0,max):max;else values[z]=scroll[z];values[z]+=this.options.offset[z];}
return this.parent([scroll.x,scroll.y],[values.x,values.y]);},toTop:function(){return this.start(false,0);},toLeft:function(){return this.start(0,false);},toRight:function(){return this.start('right',false);},toBottom:function(){return this.start(false,'bottom');},toElement:function(el){var position=$(el).getPosition(this.element);return this.start(position.x,position.y);}});Fx.Elements=new Class({Extends:Fx.CSS,initialize:function(elements,options){this.elements=this.subject=$$(elements);this.parent(options);},compute:function(from,to,delta){var now={};for(var i in from){var iFrom=from[i],iTo=to[i],iNow=now[i]={};for(var p in iFrom)iNow[p]=this.parent(iFrom[p],iTo[p],delta);}
return now;},set:function(now){for(var i in now){var iNow=now[i];for(var p in iNow)this.render(this.elements[i],p,iNow[p],this.options.unit);}
return this;},start:function(obj){if(!this.check(arguments.callee,obj))return this;var from={},to={};for(var i in obj){var iProps=obj[i],iFrom=from[i]={},iTo=to[i]={};for(var p in iProps){var parsed=this.prepare(this.elements[i],p,iProps[p]);iFrom[p]=parsed.from;iTo[p]=parsed.to;}}
return this.parent(from,to);}});var Drag=new Class({Implements:[Events,Options],options:{snap:6,unit:'px',grid:false,style:true,limit:false,handle:false,invert:false,preventDefault:false,modifiers:{x:'left',y:'top'}},initialize:function(){var params=Array.link(arguments,{'options':Object.type,'element':$defined});this.element=$(params.element);this.document=this.element.getDocument();this.setOptions(params.options||{});var htype=$type(this.options.handle);this.handles=(htype=='array'||htype=='collection')?$$(this.options.handle):$(this.options.handle)||this.element;this.mouse={'now':{},'pos':{}};this.value={'start':{},'now':{}};this.selection=(Browser.Engine.trident)?'selectstart':'mousedown';this.bound={start:this.start.bind(this),check:this.check.bind(this),drag:this.drag.bind(this),stop:this.stop.bind(this),cancel:this.cancel.bind(this),eventStop:$lambda(false)};this.attach();},attach:function(){this.handles.addEvent('mousedown',this.bound.start);return this;},detach:function(){this.handles.removeEvent('mousedown',this.bound.start);return this;},start:function(event){if(this.options.preventDefault)event.preventDefault();this.fireEvent('beforeStart',this.element);this.mouse.start=event.page;var limit=this.options.limit;this.limit={'x':[],'y':[]};for(var z in this.options.modifiers){if(!this.options.modifiers[z])continue;if(this.options.style)this.value.now[z]=this.element.getStyle(this.options.modifiers[z]).toInt();else this.value.now[z]=this.element[this.options.modifiers[z]];if(this.options.invert)this.value.now[z]*=-1;this.mouse.pos[z]=event.page[z]-this.value.now[z];if(limit&&limit[z]){for(var i=2;i--;i){if($chk(limit[z][i]))this.limit[z][i]=$lambda(limit[z][i])();}}}
if($type(this.options.grid)=='number')this.options.grid={'x':this.options.grid,'y':this.options.grid};this.document.addEvents({mousemove:this.bound.check,mouseup:this.bound.cancel});this.document.addEvent(this.selection,this.bound.eventStop);},check:function(event){if(this.options.preventDefault)event.preventDefault();var distance=Math.round(Math.sqrt(Math.pow(event.page.x-this.mouse.start.x,2)+Math.pow(event.page.y-this.mouse.start.y,2)));if(distance>this.options.snap){this.cancel();this.document.addEvents({mousemove:this.bound.drag,mouseup:this.bound.stop});this.fireEvent('start',this.element).fireEvent('snap',this.element);}},drag:function(event){if(this.options.preventDefault)event.preventDefault();this.mouse.now=event.page;for(var z in this.options.modifiers){if(!this.options.modifiers[z])continue;this.value.now[z]=this.mouse.now[z]-this.mouse.pos[z];if(this.options.invert)this.value.now[z]*=-1;if(this.options.limit&&this.limit[z]){if($chk(this.limit[z][1])&&(this.value.now[z]>this.limit[z][1])){this.value.now[z]=this.limit[z][1];}else if($chk(this.limit[z][0])&&(this.value.now[z]<this.limit[z][0])){this.value.now[z]=this.limit[z][0];}}
if(this.options.grid[z])this.value.now[z]-=(this.value.now[z]%this.options.grid[z]);if(this.options.style)this.element.setStyle(this.options.modifiers[z],this.value.now[z]+this.options.unit);else this.element[this.options.modifiers[z]]=this.value.now[z];}
this.fireEvent('drag',this.element);},cancel:function(event){this.document.removeEvent('mousemove',this.bound.check);this.document.removeEvent('mouseup',this.bound.cancel);if(event){this.document.removeEvent(this.selection,this.bound.eventStop);this.fireEvent('cancel',this.element);}},stop:function(event){this.document.removeEvent(this.selection,this.bound.eventStop);this.document.removeEvent('mousemove',this.bound.drag);this.document.removeEvent('mouseup',this.bound.stop);if(event)this.fireEvent('complete',this.element);}});Element.implement({makeResizable:function(options){return new Drag(this,$merge({modifiers:{'x':'width','y':'height'}},options));}});Hash.Cookie=new Class({Extends:Cookie,options:{autoSave:true},initialize:function(name,options){this.parent(name,options);this.load();},save:function(){var value=JSON.encode(this.hash);if(!value||value.length>4096)return false;if(value=='{}')this.dispose();else this.write(value);return true;},load:function(){this.hash=new Hash(JSON.decode(this.read(),true));return this;}});Hash.Cookie.implement((function(){var methods={};Hash.each(Hash.prototype,function(method,name){methods[name]=function(){var value=method.apply(this.hash,arguments);if(this.options.autoSave)this.save();return value;};});return methods;})());var Color=new Native({initialize:function(color,type){if(arguments.length>=3){type="rgb";color=Array.slice(arguments,0,3);}else if(typeof color=='string'){if(color.match(/rgb/))color=color.rgbToHex().hexToRgb(true);else if(color.match(/hsb/))color=color.hsbToRgb();else color=color.hexToRgb(true);}
type=type||'rgb';switch(type){case'hsb':var old=color;color=color.hsbToRgb();color.hsb=old;break;case'hex':color=color.hexToRgb(true);break;}
color.rgb=color.slice(0,3);color.hsb=color.hsb||color.rgbToHsb();color.hex=color.rgbToHex();return $extend(color,this);}});Color.implement({mix:function(){var colors=Array.slice(arguments);var alpha=($type(colors.getLast())=='number')?colors.pop():50;var rgb=this.slice();colors.each(function(color){color=new Color(color);for(var i=0;i<3;i++)rgb[i]=Math.round((rgb[i]/100*(100-alpha))+(color[i]/100*alpha));});return new Color(rgb,'rgb');},invert:function(){return new Color(this.map(function(value){return 255-value;}));},setHue:function(value){return new Color([value,this.hsb[1],this.hsb[2]],'hsb');},setSaturation:function(percent){return new Color([this.hsb[0],percent,this.hsb[2]],'hsb');},setBrightness:function(percent){return new Color([this.hsb[0],this.hsb[1],percent],'hsb');}});function $RGB(r,g,b){return new Color([r,g,b],'rgb');};function $HSB(h,s,b){return new Color([h,s,b],'hsb');};function $HEX(hex){return new Color(hex,'hex');};Array.implement({rgbToHsb:function(){var red=this[0],green=this[1],blue=this[2];var hue,saturation,brightness;var max=Math.max(red,green,blue),min=Math.min(red,green,blue);var delta=max-min;brightness=max/255;saturation=(max!=0)?delta/max:0;if(saturation==0){hue=0;}else{var rr=(max-red)/delta;var gr=(max-green)/delta;var br=(max-blue)/delta;if(red==max)hue=br-gr;else if(green==max)hue=2+rr-br;else hue=4+gr-rr;hue/=6;if(hue<0)hue++;}
return[Math.round(hue*360),Math.round(saturation*100),Math.round(brightness*100)];},hsbToRgb:function(){var br=Math.round(this[2]/100*255);if(this[1]==0){return[br,br,br];}else{var hue=this[0]%360;var f=hue%60;var p=Math.round((this[2]*(100-this[1]))/10000*255);var q=Math.round((this[2]*(6000-this[1]*f))/600000*255);var t=Math.round((this[2]*(6000-this[1]*(60-f)))/600000*255);switch(Math.floor(hue/60)){case 0:return[br,t,p];case 1:return[q,br,p];case 2:return[p,br,t];case 3:return[p,q,br];case 4:return[t,p,br];case 5:return[br,p,q];}}
return false;}});String.implement({rgbToHsb:function(){var rgb=this.match(/\d{1,3}/g);return(rgb)?hsb.rgbToHsb():null;},hsbToRgb:function(){var hsb=this.match(/\d{1,3}/g);return(hsb)?hsb.hsbToRgb():null;}});var Group=new Class({initialize:function(){this.instances=Array.flatten(arguments);this.events={};this.checker={};},addEvent:function(type,fn){this.checker[type]=this.checker[type]||{};this.events[type]=this.events[type]||[];if(this.events[type].contains(fn))return false;else this.events[type].push(fn);this.instances.each(function(instance,i){instance.addEvent(type,this.check.bind(this,[type,instance,i]));},this);return this;},check:function(type,instance,i){this.checker[type][i]=true;var every=this.instances.every(function(current,j){return this.checker[type][j]||false;},this);if(!every)return;this.checker[type]={};this.events[type].each(function(event){event.call(this,this.instances,instance);},this);}});var Asset=new Hash({javascript:function(source,properties){properties=$extend({onload:$empty,document:document,check:$lambda(true)},properties);var script=new Element('script',{'src':source,'type':'text/javascript'});var load=properties.onload.bind(script),check=properties.check,doc=properties.document;delete properties.onload;delete properties.check;delete properties.document;script.addEvents({load:load,readystatechange:function(){if(['loaded','complete'].contains(this.readyState))load();}}).setProperties(properties);if(Browser.Engine.webkit419)var checker=(function(){if(!$try(check))return;$clear(checker);load();}).periodical(50);return script.inject(doc.head);},css:function(source,properties){return new Element('link',$merge({'rel':'stylesheet','media':'screen','type':'text/css','href':source},properties)).inject(document.head);},image:function(source,properties){properties=$merge({'onload':$empty,'onabort':$empty,'onerror':$empty},properties);var image=new Image();var element=$(image)||new Element('img');['load','abort','error'].each(function(name){var type='on'+name;var event=properties[type];delete properties[type];image[type]=function(){if(!image)return;if(!element.parentNode){element.width=image.width;element.height=image.height;}
image=image.onload=image.onabort=image.onerror=null;event.delay(1,element,element);element.fireEvent(name,element,1);};});image.src=element.src=source;if(image&&image.complete)image.onload.delay(1);return element.setProperties(properties);},images:function(sources,options){options=$merge({onComplete:$empty,onProgress:$empty},options);if(!sources.push)sources=[sources];var images=[];var counter=0;sources.each(function(source){var img=new Asset.image(source,{'onload':function(){options.onProgress.call(this,counter,sources.indexOf(source));counter++;if(counter==sources.length)options.onComplete();}});images.push(img);});return new Elements(images);}});var SmoothScroll=new Class({Extends:Fx.Scroll,initialize:function(options,context){context=context||document;var doc=context.getDocument(),win=context.getWindow();this.parent(doc,options);this.links=(this.options.links)?$$(this.options.links):$$(doc.links);var location=win.location.href.match(/^[^#]*/)[0]+'#';this.links.each(function(link){if(link.href.indexOf(location)!=0)return;var anchor=link.href.substr(location.length);if(anchor&&$(anchor))this.useLink(link,anchor);},this);if(!Browser.Engine.webkit419)this.addEvent('complete',function(){win.location.hash=this.anchor;},true);},useLink:function(link,anchor){link.addEvent('click',function(event){this.anchor=anchor;this.toElement(anchor);event.stop();}.bind(this));}});var Scroller=new Class({Implements:[Events,Options],options:{area:20,velocity:1,onChange:function(x,y){this.element.scrollTo(x,y);}},initialize:function(element,options){this.setOptions(options);this.element=$(element);this.listener=($type(this.element)!='element')?$(this.element.getDocument().body):this.element;this.timer=null;this.coord=this.getCoords.bind(this);},start:function(){this.listener.addEvent('mousemove',this.coord);},stop:function(){this.listener.removeEvent('mousemove',this.coord);this.timer=$clear(this.timer);},getCoords:function(event){this.page=(this.listener.get('tag')=='body')?event.client:event.page;if(!this.timer)this.timer=this.scroll.periodical(50,this);},scroll:function(){var size=this.element.getSize(),scroll=this.element.getScroll(),pos=this.element.getPosition(),change={'x':0,'y':0};for(var z in this.page){if(this.page[z]<(this.options.area+pos[z])&&scroll[z]!=0)
change[z]=(this.page[z]-this.options.area-pos[z])*this.options.velocity;else if(this.page[z]+this.options.area>(size[z]+pos[z])&&size[z]+size[z]!=scroll[z])
change[z]=(this.page[z]-size[z]+this.options.area-pos[z])*this.options.velocity;}
if(change.y||change.x)this.fireEvent('change',[scroll.x+change.x,scroll.y+change.y]);}});