Fx.Scroll=Fx.Base.extend({options:{overflown:[],offset:{'x':0,'y':0},wheelStops:true},initialize:function(element,options){this.now=[];this.element=$(element);this.bound={'stop':this.stop.bind(this,false)};this.parent(options);if(this.options.wheelStops){this.addEvent('onStart',function(){document.addEvent('mousewheel',this.bound.stop)}.bind(this));this.addEvent('onComplete',function(){document.removeEvent('mousewheel',this.bound.stop)}.bind(this))}},setNow:function(){for(var i=0;i<2;i++)this.now[i]=this.compute(this.from[i],this.to[i])},scrollTo:function(x,y){if(this.timer&&this.options.wait)return this;var el=this.element.getSize();var values={'x':x,'y':y};for(var z in el.size){var max=el.scrollSize[z]-el.size[z];if($chk(values[z]))values[z]=($type(values[z])=='number')?values[z].limit(0,max):max;else values[z]=el.scroll[z];values[z]+=this.options.offset[z]}return this.start([el.scroll.x,el.scroll.y],[values.x,values.y])},toTop:function(){return this.scrollTo(false,0)},toBottom:function(){return this.scrollTo(false,'full')},toLeft:function(){return this.scrollTo(0,false)},toRight:function(){return this.scrollTo('full',false)},toElement:function(el){var parent=this.element.getPosition(this.options.overflown);var target=$(el).getPosition(this.options.overflown);return this.scrollTo(target.x-parent.x,target.y-parent.y)},increase:function(){this.element.scrollTo(this.now[0],this.now[1])}});var Drag={};Drag.Base=new Class({options:{handle:false,unit:'px',onStart:Class.empty,onBeforeStart:Class.empty,onComplete:Class.empty,onSnap:Class.empty,onDrag:Class.empty,limit:false,modifiers:{x:'left',y:'top'},grid:false,snap:6},initialize:function(el,options){this.setOptions(options);this.element=$(el);this.handle=$(this.options.handle)||this.element;this.mouse={'now':{},'pos':{}};this.value={'start':{},'now':{}};this.bound={'start':this.start.bindWithEvent(this),'check':this.check.bindWithEvent(this),'drag':this.drag.bindWithEvent(this),'stop':this.stop.bind(this)};this.attach();if(this.options.initialize)this.options.initialize.call(this)},attach:function(){this.handle.addEvent('mousedown',this.bound.start);return this},detach:function(){this.handle.removeEvent('mousedown',this.bound.start);return this},start:function(event){this.fireEvent('onBeforeStart',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;this.value.now[z]=this.element.getStyle(this.options.modifiers[z]).toInt();this.mouse.pos[z]=event.page[z]-this.value.now[z];if(limit&&limit[z]){for(var i=0;i<2;i++){if($chk(limit[z][i]))this.limit[z][i]=($type(limit[z][i])=='function')?limit[z][i]():limit[z][i]}}}if($type(this.options.grid)=='number')this.options.grid={'x':this.options.grid,'y':this.options.grid};document.addListener('mousemove',this.bound.check);document.addListener('mouseup',this.bound.stop);this.fireEvent('onStart',this.element);event.stop()},check:function(event){var distance=Math.round(Math.sqrt(Math.pow(event.page.x-this.mouse.start.x,2)+Math.pow(event.page.y-this.mouse.start.y,2)));if(distance>this.options.snap){document.removeListener('mousemove',this.bound.check);document.addListener('mousemove',this.bound.drag);this.drag(event);this.fireEvent('onSnap',this.element)}event.stop()},drag:function(event){this.out=false;this.mouse.now=event.page;for(var z in this.options.modifiers){if(!this.options.modifiers[z])continue;this.value.now[z]=this.mouse.now[z]-this.mouse.pos[z];if(this.limit[z]){if($chk(this.limit[z][1])&&(this.value.now[z]>this.limit[z][1])){this.value.now[z]=this.limit[z][1];this.out=true}else if($chk(this.limit[z][0])&&(this.value.now[z]<this.limit[z][0])){this.value.now[z]=this.limit[z][0];this.out=true}}if(this.options.grid[z])this.value.now[z]-=(this.value.now[z]%this.options.grid[z]);this.element.setStyle(this.options.modifiers[z],this.value.now[z]+this.options.unit)}this.fireEvent('onDrag',this.element);event.stop()},stop:function(){document.removeListener('mousemove',this.bound.check);document.removeListener('mousemove',this.bound.drag);document.removeListener('mouseup',this.bound.stop);this.fireEvent('onComplete',this.element)}});Drag.Base.implement(new Events,new Options);Element.extend({makeResizable:function(options){return new Drag.Base(this,$merge({modifiers:{x:'width',y:'height'}},options))}});Drag.Move=Drag.Base.extend({options:{droppables:[],container:false,overflown:[]},initialize:function(el,options){this.setOptions(options);this.element=$(el);this.droppables=$$(this.options.droppables);this.container=$(this.options.container);this.position={'element':this.element.getStyle('position'),'container':false};if(this.container)this.position.container=this.container.getStyle('position');if(!['relative','absolute','fixed'].contains(this.position.element))this.position.element='absolute';var top=this.element.getStyle('top').toInt();var left=this.element.getStyle('left').toInt();if(this.position.element=='absolute'&&!['relative','absolute','fixed'].contains(this.position.container)){top=$chk(top)?top:this.element.getTop(this.options.overflown);left=$chk(left)?left:this.element.getLeft(this.options.overflown)}else{top=$chk(top)?top:0;left=$chk(left)?left:0}this.element.setStyles({'top':top,'left':left,'position':this.position.element});this.parent(this.element)},start:function(event){this.overed=null;if(this.container){var cont=this.container.getCoordinates();var el=this.element.getCoordinates();if(this.position.element=='absolute'&&!['relative','absolute','fixed'].contains(this.position.container)){this.options.limit={'x':[cont.left,cont.right-el.width],'y':[cont.top,cont.bottom-el.height]}}else{this.options.limit={'y':[0,cont.height-el.height],'x':[0,cont.width-el.width]}}}this.parent(event)},drag:function(event){this.parent(event);var overed=this.out?false:this.droppables.filter(this.checkAgainst,this).getLast();if(this.overed!=overed){if(this.overed)this.overed.fireEvent('leave',[this.element,this]);this.overed=overed?overed.fireEvent('over',[this.element,this]):null}return this},checkAgainst:function(el){el=el.getCoordinates(this.options.overflown);var now=this.mouse.now;return(now.x>el.left&&now.x<el.right&&now.y<el.bottom&&now.y>el.top)},stop:function(){if(this.overed&&!this.out)this.overed.fireEvent('drop',[this.element,this]);else this.element.fireEvent('emptydrop',this);this.parent();return this}});Element.extend({makeDraggable:function(options){return new Drag.Move(this,options)}});var SmoothScroll=Fx.Scroll.extend({initialize:function(options){this.parent(window,options);this.links=(this.options.links)?$$(this.options.links):$$(document.links);var location=window.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(!window.webkit419)this.addEvent('onComplete',function(){window.location.hash=this.anchor})},useLink:function(link,anchor){link.addEvent('click',function(event){this.anchor=anchor;this.toElement(anchor);event.stop()}.bindWithEvent(this))}});