// MooTools: the javascript framework.
// Load this file's selection again by visiting: http://mootools.net/more/a5478e9d56911a175cb5c7a2fcfaa222 
// Or build this file again with packager using: packager build More/Assets More/Scroller
/*
---
copyrights:
  - [MooTools](http://mootools.net)

licenses:
  - [MIT License](http://mootools.net/license.txt)
...
*/
MooTools.More={version:"1.3.0.1",build:"6dce99bed2792dffcbbbb4ddc15a1fb9a41994b5"};var Asset={javascript:function(d,b){b=Object.append({document:document},b);
if(b.onLoad){b.onload=b.onLoad;delete b.onLoad;}var a=new Element("script",{src:d,type:"text/javascript"});var c=b.onload||function(){},e=b.document;delete b.onload;
delete b.document;return a.addEvents({load:c,readystatechange:function(){if(["loaded","complete"].contains(this.readyState)){c.call(this);}}}).set(b).inject(e.head);
},css:function(b,a){a=a||{};var c=a.onload||a.onLoad;if(c){a.events=a.events||{};a.events.load=c;delete a.onload;delete a.onLoad;}return new Element("link",Object.merge({rel:"stylesheet",media:"screen",type:"text/css",href:b},a)).inject(document.head);
},image:function(c,b){b=Object.merge({onload:function(){},onabort:function(){},onerror:function(){}},b);var d=new Image();var a=document.id(d)||new Element("img");
["load","abort","error"].each(function(e){var g="on"+e;var f=e.capitalize();if(b["on"+f]){b[g]=b["on"+f];delete b["on"+f];}var h=b[g];delete b[g];d[g]=function(){if(!d){return;
}if(!a.parentNode){a.width=d.width;a.height=d.height;}d=d.onload=d.onabort=d.onerror=null;h.delay(1,a,a);a.fireEvent(e,a,1);};});d.src=a.src=c;if(d&&d.complete){d.onload.delay(1);
}return a.set(b);},images:function(c,b){b=Object.merge({onComplete:function(){},onProgress:function(){},onError:function(){},properties:{}},b);c=Array.from(c);
var a=0;return new Elements(c.map(function(e,d){return Asset.image(e,Object.append(b.properties,{onload:function(){a++;b.onProgress.call(this,a,d,e);if(a==c.length){b.onComplete();
}},onerror:function(){a++;b.onError.call(this,a,d,e);if(a==c.length){b.onComplete();}}}));}));}};var Scroller=new Class({Implements:[Events,Options],options:{area:20,velocity:1,onChange:function(a,b){this.element.scrollTo(a,b);
},fps:50},initialize:function(b,a){this.setOptions(a);this.element=document.id(b);this.docBody=document.id(this.element.getDocument().body);this.listener=(typeOf(this.element)!="element")?this.docBody:this.element;
this.timer=null;this.bound={attach:this.attach.bind(this),detach:this.detach.bind(this),getCoords:this.getCoords.bind(this)};},start:function(){this.listener.addEvents({mouseenter:this.bound.attach,mouseleave:this.bound.detach});
return this;},stop:function(){this.listener.removeEvents({mouseenter:this.bound.attach,mouseleave:this.bound.detach});this.detach();this.timer=clearInterval(this.timer);
return this;},attach:function(){this.listener.addEvent("mousemove",this.bound.getCoords);},detach:function(){this.listener.removeEvent("mousemove",this.bound.getCoords);
this.timer=clearInterval(this.timer);},getCoords:function(a){this.page=(this.listener.get("tag")=="body")?a.client:a.page;if(!this.timer){this.timer=this.scroll.periodical(Math.round(1000/this.options.fps),this);
}},scroll:function(){var c=this.element.getSize(),a=this.element.getScroll(),h=this.element!=this.docBody?this.element.getOffsets():{x:0,y:0},d=this.element.getScrollSize(),g={x:0,y:0},e=this.options.area.top||this.options.area,b=this.options.area.bottom||this.options.area;
for(var f in this.page){if(this.page[f]<(e+h[f])&&a[f]!=0){g[f]=(this.page[f]-e-h[f])*this.options.velocity;}else{if(this.page[f]+b>(c[f]+h[f])&&a[f]+c[f]!=d[f]){g[f]=(this.page[f]-c[f]+b-h[f])*this.options.velocity;
}}g[f]=g[f].round();}if(g.y||g.x){this.fireEvent("change",[a.x+g.x,a.y+g.y]);}}});