if(Object.isUndefined(Effect)){throw ("dragdrop.js requires including script.aculo.us' effects.js library")}var Droppables={drops:[],remove:function(a){this.drops=this.drops.reject(function(b){return b.element==$(a)})},add:function(b){b=$(b);var a=Object.extend({greedy:true,hoverclass:null,tree:false},arguments[1]||{});if(a.containment){a._containers=[];var c=a.containment;if(Object.isArray(c)){c.each(function(d){a._containers.push($(d))})}else{a._containers.push($(c))}}if(a.accept){a.accept=[a.accept].flatten()}Element.makePositioned(b);a.element=b;this.drops.push(a)},findDeepestChild:function(a){deepest=a[0];for(i=1;i<a.length;++i){if(Element.isParent(a[i].element,deepest.element)){deepest=a[i]}}return deepest},isContained:function(b,a){var c;if(a.tree){c=b.treeNode}else{c=b.parentNode}return a._containers.detect(function(d){return c==d})},isAffected:function(a,c,b){return((b.element!=c)&&((!b._containers)||this.isContained(c,b))&&((!b.accept)||(Element.classNames(c).detect(function(d){return b.accept.include(d)})))&&Position.within(b.element,a[0],a[1]))},deactivate:function(a){if(a.hoverclass){Element.removeClassName(a.element,a.hoverclass)}this.last_active=null},activate:function(a){if(a.hoverclass){Element.addClassName(a.element,a.hoverclass)}this.last_active=a},show:function(a,c){if(!this.drops.length){return}var b,d=[];this.drops.each(function(e){if(Droppables.isAffected(a,c,e)){d.push(e)}});if(d.length>0){b=Droppables.findDeepestChild(d)}if(this.last_active&&this.last_active!=b){this.deactivate(this.last_active)}if(b){Position.within(b.element,a[0],a[1]);if(b.onHover){b.onHover(c,b.element,Position.overlap(b.overlap,b.element))}if(b!=this.last_active){Droppables.activate(b)}}},fire:function(b,a){if(!this.last_active){return}Position.prepare();if(this.isAffected([Event.pointerX(b),Event.pointerY(b)],a,this.last_active)){if(this.last_active.onDrop){this.last_active.onDrop(a,this.last_active.element,b);return true}}},reset:function(){if(this.last_active){this.deactivate(this.last_active)}}};var Draggables={drags:[],observers:[],register:function(a){if(this.drags.length==0){this.eventMouseUp=this.endDrag.bindAsEventListener(this);this.eventMouseMove=this.updateDrag.bindAsEventListener(this);this.eventKeypress=this.keyPress.bindAsEventListener(this);Event.observe(document,"mouseup",this.eventMouseUp);Event.observe(document,"mousemove",this.eventMouseMove);Event.observe(document,"keypress",this.eventKeypress)}this.drags.push(a)},unregister:function(a){this.drags=this.drags.reject(function(b){return b==a});if(this.drags.length==0){Event.stopObserving(document,"mouseup",this.eventMouseUp);Event.stopObserving(document,"mousemove",this.eventMouseMove);Event.stopObserving(document,"keypress",this.eventKeypress)}},activate:function(a){if(a.options.delay){this._timeout=setTimeout(function(){Draggables._timeout=null;window.focus();Draggables.activeDraggable=a}.bind(this),a.options.delay)}else{window.focus();this.activeDraggable=a}},deactivate:function(){this.activeDraggable=null},updateDrag:function(a){if(!this.activeDraggable){return}var b=[Event.pointerX(a),Event.pointerY(a)];if(this._lastPointer&&(this._lastPointer.inspect()==b.inspect())){return}this._lastPointer=b;this.activeDraggable.updateDrag(a,b)},endDrag:function(a){if(this._timeout){clearTimeout(this._timeout);this._timeout=null}if(!this.activeDraggable){return}this._lastPointer=null;this.activeDraggable.endDrag(a);this.activeDraggable=null},keyPress:function(a){if(this.activeDraggable){this.activeDraggable.keyPress(a)}},addObserver:function(a){this.observers.push(a);this._cacheObserverCallbacks()},removeObserver:function(a){this.observers=this.observers.reject(function(b){return b.element==a});this._cacheObserverCallbacks()},notify:function(b,a,c){if(this[b+"Count"]>0){this.observers.each(function(d){if(d[b]){d[b](b,a,c)}})}if(a.options[b]){a.options[b](a,c)}},_cacheObserverCallbacks:function(){["onStart","onEnd","onDrag"].each(function(a){Draggables[a+"Count"]=Draggables.observers.select(function(b){return b[a]}).length})}};var Draggable=Class.create({initialize:function(b){var c={handle:false,reverteffect:function(f,e,d){var g=Math.sqrt(Math.abs(e^2)+Math.abs(d^2))*0.02;new Effect.Move(f,{x:-d,y:-e,duration:g,queue:{scope:"_draggable",position:"end"}})},endeffect:function(e){var d=Object.isNumber(e._opacity)?e._opacity:1;new Effect.Opacity(e,{duration:0.2,from:0.7,to:d,queue:{scope:"_draggable",position:"end"},afterFinish:function(){Draggable._dragging[e]=false}})},zindex:1000,revert:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,snap:false,delay:0};if(!arguments[1]||Object.isUndefined(arguments[1].endeffect)){Object.extend(c,{starteffect:function(d){d._opacity=Element.getOpacity(d);Draggable._dragging[d]=true;new Effect.Opacity(d,{duration:0.2,from:d._opacity,to:0.7})}})}var a=Object.extend(c,arguments[1]||{});this.element=$(b);if(a.handle&&Object.isString(a.handle)){this.handle=this.element.down("."+a.handle,0)}if(!this.handle){this.handle=$(a.handle)}if(!this.handle){this.handle=this.element}if(a.scroll&&!a.scroll.scrollTo&&!a.scroll.outerHTML){a.scroll=$(a.scroll);this._isScrollChild=Element.childOf(this.element,a.scroll)}Element.makePositioned(this.element);this.options=a;this.dragging=false;this.eventMouseDown=this.initDrag.bindAsEventListener(this);Event.observe(this.handle,"mousedown",this.eventMouseDown);Draggables.register(this)},destroy:function(){Event.stopObserving(this.handle,"mousedown",this.eventMouseDown);Draggables.unregister(this)},currentDelta:function(){return([parseInt(Element.getStyle(this.element,"left")||"0"),parseInt(Element.getStyle(this.element,"top")||"0")])},initDrag:function(a){if(!Object.isUndefined(Draggable._dragging[this.element])&&Draggable._dragging[this.element]){return}if(Event.isLeftClick(a)){var c=Event.element(a);if((tag_name=c.tagName.toUpperCase())&&(tag_name=="INPUT"||tag_name=="SELECT"||tag_name=="OPTION"||tag_name=="BUTTON"||tag_name=="TEXTAREA")){return}var b=[Event.pointerX(a),Event.pointerY(a)];var d=Position.cumulativeOffset(this.element);this.offset=[0,1].map(function(e){return(b[e]-d[e])});Draggables.activate(this);Event.stop(a)}},startDrag:function(b){this.dragging=true;if(!this.delta){this.delta=this.currentDelta()}if(this.options.zindex){this.originalZ=parseInt(Element.getStyle(this.element,"z-index")||0);this.element.style.zIndex=this.options.zindex}if(this.options.ghosting){this._clone=this.element.cloneNode(true);this._originallyAbsolute=(this.element.getStyle("position")=="absolute");if(!this._originallyAbsolute){Position.absolutize(this.element)}this.element.parentNode.insertBefore(this._clone,this.element)}if(this.options.scroll){if(this.options.scroll==window){var a=this._getWindowScroll(this.options.scroll);this.originalScrollLeft=a.left;this.originalScrollTop=a.top}else{this.originalScrollLeft=this.options.scroll.scrollLeft;this.originalScrollTop=this.options.scroll.scrollTop}}Draggables.notify("onStart",this,b);if(this.options.starteffect){this.options.starteffect(this.element)}},updateDrag:function(event,pointer){if(!this.dragging){this.startDrag(event)}if(!this.options.quiet){Position.prepare();Droppables.show(pointer,this.element)}Draggables.notify("onDrag",this,event);this.draw(pointer);if(this.options.change){this.options.change(this)}if(this.options.scroll){this.stopScrolling();var p;if(this.options.scroll==window){with(this._getWindowScroll(this.options.scroll)){p=[left,top,left+width,top+height]}}else{p=Position.page(this.options.scroll);p[0]+=this.options.scroll.scrollLeft+Position.deltaX;p[1]+=this.options.scroll.scrollTop+Position.deltaY;p.push(p[0]+this.options.scroll.offsetWidth);p.push(p[1]+this.options.scroll.offsetHeight)}var speed=[0,0];if(pointer[0]<(p[0]+this.options.scrollSensitivity)){speed[0]=pointer[0]-(p[0]+this.options.scrollSensitivity)}if(pointer[1]<(p[1]+this.options.scrollSensitivity)){speed[1]=pointer[1]-(p[1]+this.options.scrollSensitivity)}if(pointer[0]>(p[2]-this.options.scrollSensitivity)){speed[0]=pointer[0]-(p[2]-this.options.scrollSensitivity)}if(pointer[1]>(p[3]-this.options.scrollSensitivity)){speed[1]=pointer[1]-(p[3]-this.options.scrollSensitivity)}this.startScrolling(speed)}if(Prototype.Browser.WebKit){window.scrollBy(0,0)}Event.stop(event)},finishDrag:function(b,f){this.dragging=false;if(this.options.quiet){Position.prepare();var e=[Event.pointerX(b),Event.pointerY(b)];Droppables.show(e,this.element)}if(this.options.ghosting){if(!this._originallyAbsolute){Position.relativize(this.element)}delete this._originallyAbsolute;Element.remove(this._clone);this._clone=null}var g=false;if(f){g=Droppables.fire(b,this.element);if(!g){g=false}}if(g&&this.options.onDropped){this.options.onDropped(this.element)}Draggables.notify("onEnd",this,b);var a=this.options.revert;if(a&&Object.isFunction(a)){a=a(this.element)}var c=this.currentDelta();if(a&&this.options.reverteffect){if(g==0||a!="failure"){this.options.reverteffect(this.element,c[1]-this.delta[1],c[0]-this.delta[0])}}else{this.delta=c}if(this.options.zindex){this.element.style.zIndex=this.originalZ}if(this.options.endeffect){this.options.endeffect(this.element)}Draggables.deactivate(this);Droppables.reset()},keyPress:function(a){if(a.keyCode!=Event.KEY_ESC){return}this.finishDrag(a,false);Event.stop(a)},endDrag:function(a){if(!this.dragging){return}this.stopScrolling();this.finishDrag(a,true);Event.stop(a)},draw:function(a){var g=Position.cumulativeOffset(this.element);if(this.options.ghosting){var c=Position.realOffset(this.element);g[0]+=c[0]-Position.deltaX;g[1]+=c[1]-Position.deltaY}var f=this.currentDelta();g[0]-=f[0];g[1]-=f[1];if(this.options.scroll&&(this.options.scroll!=window&&this._isScrollChild)){g[0]-=this.options.scroll.scrollLeft-this.originalScrollLeft;g[1]-=this.options.scroll.scrollTop-this.originalScrollTop}var e=[0,1].map(function(d){return(a[d]-g[d]-this.offset[d])}.bind(this));if(this.options.snap){if(Object.isFunction(this.options.snap)){e=this.options.snap(e[0],e[1],this)}else{if(Object.isArray(this.options.snap)){e=e.map(function(d,h){return(d/this.options.snap[h]).round()*this.options.snap[h]}.bind(this))}else{e=e.map(function(d){return(d/this.options.snap).round()*this.options.snap}.bind(this))}}}var b=this.element.style;if((!this.options.constraint)||(this.options.constraint=="horizontal")){b.left=e[0]+"px"}if((!this.options.constraint)||(this.options.constraint=="vertical")){b.top=e[1]+"px"}if(b.visibility=="hidden"){b.visibility=""}},stopScrolling:function(){if(this.scrollInterval){clearInterval(this.scrollInterval);this.scrollInterval=null;Draggables._lastScrollPointer=null}},startScrolling:function(a){if(!(a[0]||a[1])){return}this.scrollSpeed=[a[0]*this.options.scrollSpeed,a[1]*this.options.scrollSpeed];this.lastScrolled=new Date();this.scrollInterval=setInterval(this.scroll.bind(this),10)},scroll:function(){var current=new Date();var delta=current-this.lastScrolled;this.lastScrolled=current;if(this.options.scroll==window){with(this._getWindowScroll(this.options.scroll)){if(this.scrollSpeed[0]||this.scrollSpeed[1]){var d=delta/1000;this.options.scroll.scrollTo(left+d*this.scrollSpeed[0],top+d*this.scrollSpeed[1])}}}else{this.options.scroll.scrollLeft+=this.scrollSpeed[0]*delta/1000;this.options.scroll.scrollTop+=this.scrollSpeed[1]*delta/1000}Position.prepare();Droppables.show(Draggables._lastPointer,this.element);Draggables.notify("onDrag",this);if(this._isScrollChild){Draggables._lastScrollPointer=Draggables._lastScrollPointer||$A(Draggables._lastPointer);Draggables._lastScrollPointer[0]+=this.scrollSpeed[0]*delta/1000;Draggables._lastScrollPointer[1]+=this.scrollSpeed[1]*delta/1000;if(Draggables._lastScrollPointer[0]<0){Draggables._lastScrollPointer[0]=0}if(Draggables._lastScrollPointer[1]<0){Draggables._lastScrollPointer[1]=0}this.draw(Draggables._lastScrollPointer)}if(this.options.change){this.options.change(this)}},_getWindowScroll:function(w){var T,L,W,H;with(w.document){if(w.document.documentElement&&documentElement.scrollTop){T=documentElement.scrollTop;L=documentElement.scrollLeft}else{if(w.document.body){T=body.scrollTop;L=body.scrollLeft}}if(w.innerWidth){W=w.innerWidth;H=w.innerHeight}else{if(w.document.documentElement&&documentElement.clientWidth){W=documentElement.clientWidth;H=documentElement.clientHeight}else{W=body.offsetWidth;H=body.offsetHeight}}}return{top:T,left:L,width:W,height:H}}});Draggable._dragging={};var SortableObserver=Class.create({initialize:function(b,a){this.element=$(b);this.observer=a;this.lastValue=Sortable.serialize(this.element)},onStart:function(){this.lastValue=Sortable.serialize(this.element)},onEnd:function(){Sortable.unmark();if(this.lastValue!=Sortable.serialize(this.element)){this.observer(this.element)}}});var Sortable={SERIALIZE_RULE:/^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,sortables:{},_findRootElement:function(a){while(a.tagName.toUpperCase()!="BODY"){if(a.id&&Sortable.sortables[a.id]){return a}a=a.parentNode}},options:function(a){a=Sortable._findRootElement($(a));if(!a){return}return Sortable.sortables[a.id]},destroy:function(a){a=$(a);var b=Sortable.sortables[a.id];if(b){Draggables.removeObserver(b.element);b.droppables.each(function(c){Droppables.remove(c)});b.draggables.invoke("destroy");delete Sortable.sortables[b.element.id]}},create:function(c){c=$(c);var b=Object.extend({element:c,tag:"li",dropOnEmpty:false,tree:false,treeTag:"ul",overlap:"vertical",constraint:"vertical",containment:c,handle:false,only:false,delay:0,hoverclass:null,ghosting:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,format:this.SERIALIZE_RULE,elements:false,handles:false,onChange:Prototype.emptyFunction,onUpdate:Prototype.emptyFunction},arguments[1]||{});this.destroy(c);var a={revert:true,quiet:b.quiet,scroll:b.scroll,scrollSpeed:b.scrollSpeed,scrollSensitivity:b.scrollSensitivity,delay:b.delay,ghosting:b.ghosting,constraint:b.constraint,handle:b.handle};if(b.starteffect){a.starteffect=b.starteffect}if(b.reverteffect){a.reverteffect=b.reverteffect}else{if(b.ghosting){a.reverteffect=function(f){f.style.top=0;f.style.left=0}}}if(b.endeffect){a.endeffect=b.endeffect}if(b.zindex){a.zindex=b.zindex}var d={overlap:b.overlap,containment:b.containment,tree:b.tree,hoverclass:b.hoverclass,onHover:Sortable.onHover};var e={onHover:Sortable.onEmptyHover,overlap:b.overlap,containment:b.containment,hoverclass:b.hoverclass};Element.cleanWhitespace(c);b.draggables=[];b.droppables=[];if(b.dropOnEmpty||b.tree){Droppables.add(c,e);b.droppables.push(c)}(b.elements||this.findElements(c,b)||[]).each(function(h,f){var g=b.handles?$(b.handles[f]):(b.handle?$(h).select("."+b.handle)[0]:h);b.draggables.push(new Draggable(h,Object.extend(a,{handle:g})));Droppables.add(h,d);if(b.tree){h.treeNode=c}b.droppables.push(h)});if(b.tree){(Sortable.findTreeElements(c,b)||[]).each(function(f){Droppables.add(f,e);f.treeNode=c;b.droppables.push(f)})}this.sortables[c.id]=b;Draggables.addObserver(new SortableObserver(c,b.onUpdate))},findElements:function(b,a){return Element.findChildren(b,a.only,a.tree?true:false,a.tag)},findTreeElements:function(b,a){return Element.findChildren(b,a.only,a.tree?true:false,a.treeTag)},onHover:function(e,d,a){if(Element.isParent(d,e)){return}if(a>0.33&&a<0.66&&Sortable.options(d).tree){return}else{if(a>0.5){Sortable.mark(d,"before");if(d.previousSibling!=e){var b=e.parentNode;e.style.visibility="hidden";d.parentNode.insertBefore(e,d);if(d.parentNode!=b){Sortable.options(b).onChange(e)}Sortable.options(d.parentNode).onChange(e)}}else{Sortable.mark(d,"after");var c=d.nextSibling||null;if(c!=e){var b=e.parentNode;e.style.visibility="hidden";d.parentNode.insertBefore(e,c);if(d.parentNode!=b){Sortable.options(b).onChange(e)}Sortable.options(d.parentNode).onChange(e)}}}},onEmptyHover:function(e,g,h){var j=e.parentNode;var a=Sortable.options(g);if(!Element.isParent(g,e)){var f;var c=Sortable.findElements(g,{tag:a.tag,only:a.only});var b=null;if(c){var d=Element.offsetSize(g,a.overlap)*(1-h);for(f=0;f<c.length;f+=1){if(d-Element.offsetSize(c[f],a.overlap)>=0){d-=Element.offsetSize(c[f],a.overlap)}else{if(d-(Element.offsetSize(c[f],a.overlap)/2)>=0){b=f+1<c.length?c[f+1]:null;break}else{b=c[f];break}}}}g.insertBefore(e,b);Sortable.options(j).onChange(e);a.onChange(e)}},unmark:function(){if(Sortable._marker){Sortable._marker.hide()}},mark:function(b,a){var d=Sortable.options(b.parentNode);if(d&&!d.ghosting){return}if(!Sortable._marker){Sortable._marker=($("dropmarker")||Element.extend(document.createElement("DIV"))).hide().addClassName("dropmarker").setStyle({position:"absolute"});document.getElementsByTagName("body").item(0).appendChild(Sortable._marker)}var c=Position.cumulativeOffset(b);Sortable._marker.setStyle({left:c[0]+"px",top:c[1]+"px"});if(a=="after"){if(d.overlap=="horizontal"){Sortable._marker.setStyle({left:(c[0]+b.clientWidth)+"px"})}else{Sortable._marker.setStyle({top:(c[1]+b.clientHeight)+"px"})}}Sortable._marker.show()},_tree:function(e,b,f){var d=Sortable.findElements(e,b)||[];for(var c=0;c<d.length;++c){var a=d[c].id.match(b.format);if(!a){continue}var g={id:encodeURIComponent(a?a[1]:null),element:e,parent:f,children:[],position:f.children.length,container:$(d[c]).down(b.treeTag)};if(g.container){this._tree(g.container,b,g)}f.children.push(g)}return f},tree:function(d){d=$(d);var c=this.options(d);var b=Object.extend({tag:c.tag,treeTag:c.treeTag,only:c.only,name:d.id,format:c.format},arguments[1]||{});var a={id:null,parent:null,children:[],container:d,position:0};return Sortable._tree(d,b,a)},_constructIndex:function(b){var a="";do{if(b.id){a="["+b.position+"]"+a}}while((b=b.parent)!=null);return a},sequence:function(b){b=$(b);var a=Object.extend(this.options(b),arguments[1]||{});return $(this.findElements(b,a)||[]).map(function(c){return c.id.match(a.format)?c.id.match(a.format)[1]:""})},setSequence:function(b,c){b=$(b);var a=Object.extend(this.options(b),arguments[2]||{});var d={};this.findElements(b,a).each(function(e){if(e.id.match(a.format)){d[e.id.match(a.format)[1]]=[e,e.parentNode]}e.parentNode.removeChild(e)});c.each(function(e){var f=d[e];if(f){f[1].appendChild(f[0]);delete d[e]}})},serialize:function(c){c=$(c);var b=Object.extend(Sortable.options(c),arguments[1]||{});var a=encodeURIComponent((arguments[1]&&arguments[1].name)?arguments[1].name:c.id);if(b.tree){return Sortable.tree(c,arguments[1]).children.map(function(d){return[a+Sortable._constructIndex(d)+"[id]="+encodeURIComponent(d.id)].concat(d.children.map(arguments.callee))}).flatten().join("&")}else{return Sortable.sequence(c,arguments[1]).map(function(d){return a+"[]="+encodeURIComponent(d)}).join("&")}}};Element.isParent=function(b,a){if(!b.parentNode||b==a){return false}if(b.parentNode==a){return true}return Element.isParent(b.parentNode,a)};Element.findChildren=function(d,b,a,c){if(!d.hasChildNodes()){return null}c=c.toUpperCase();if(b){b=[b].flatten()}var e=[];$A(d.childNodes).each(function(g){if(g.tagName&&g.tagName.toUpperCase()==c&&(!b||(Element.classNames(g).detect(function(h){return b.include(h)})))){e.push(g)}if(a){var f=Element.findChildren(g,b,a,c);if(f){e.push(f)}}});return(e.length>0?e.flatten():[])};Element.offsetSize=function(a,b){return a["offset"+((b=="vertical"||b=="height")?"Height":"Width")]};