//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2009 Aaron Newton <http://clientcide.com/>, Valerio Proietti <http://mad4milk.net> & the MooTools team <http://mootools.net/developers>, MIT Style License.

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 b=Array.link(arguments,{options:Object.type,element:$defined});
this.element=document.id(b.element);this.document=this.element.getDocument();this.setOptions(b.options||{});var a=$type(this.options.handle);this.handles=((a=="array"||a=="collection")?$$(this.options.handle):document.id(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(c){if(this.options.preventDefault){c.preventDefault();}this.mouse.start=c.page;this.fireEvent("beforeStart",this.element);
var a=this.options.limit;this.limit={x:[],y:[]};for(var d in this.options.modifiers){if(!this.options.modifiers[d]){continue;}if(this.options.style){this.value.now[d]=this.element.getStyle(this.options.modifiers[d]).toInt();
}else{this.value.now[d]=this.element[this.options.modifiers[d]];}if(this.options.invert){this.value.now[d]*=-1;}this.mouse.pos[d]=c.page[d]-this.value.now[d];
if(a&&a[d]){for(var b=2;b--;b){if($chk(a[d][b])){this.limit[d][b]=$lambda(a[d][b])();}}}}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(a){if(this.options.preventDefault){a.preventDefault();
}var b=Math.round(Math.sqrt(Math.pow(a.page.x-this.mouse.start.x,2)+Math.pow(a.page.y-this.mouse.start.y,2)));if(b>this.options.snap){this.cancel();this.document.addEvents({mousemove:this.bound.drag,mouseup:this.bound.stop});
this.fireEvent("start",[this.element,a]).fireEvent("snap",this.element);}},drag:function(a){if(this.options.preventDefault){a.preventDefault();}this.mouse.now=a.page;
for(var b in this.options.modifiers){if(!this.options.modifiers[b]){continue;}this.value.now[b]=this.mouse.now[b]-this.mouse.pos[b];if(this.options.invert){this.value.now[b]*=-1;
}if(this.options.limit&&this.limit[b]){if($chk(this.limit[b][1])&&(this.value.now[b]>this.limit[b][1])){this.value.now[b]=this.limit[b][1];}else{if($chk(this.limit[b][0])&&(this.value.now[b]<this.limit[b][0])){this.value.now[b]=this.limit[b][0];
}}}if(this.options.grid[b]){this.value.now[b]-=((this.value.now[b]-(this.limit[b][0]||0))%this.options.grid[b]);}if(this.options.style){this.element.setStyle(this.options.modifiers[b],this.value.now[b]+this.options.unit);
}else{this.element[this.options.modifiers[b]]=this.value.now[b];}}this.fireEvent("drag",[this.element,a]);},cancel:function(a){this.document.removeEvent("mousemove",this.bound.check);
this.document.removeEvent("mouseup",this.bound.cancel);if(a){this.document.removeEvent(this.selection,this.bound.eventStop);this.fireEvent("cancel",this.element);
}},stop:function(a){this.document.removeEvent(this.selection,this.bound.eventStop);this.document.removeEvent("mousemove",this.bound.drag);this.document.removeEvent("mouseup",this.bound.stop);
if(a){this.fireEvent("complete",[this.element,a]);}}});Element.implement({makeResizable:function(a){var b=new Drag(this,$merge({modifiers:{x:"width",y:"height"}},a));
this.store("resizer",b);return b.addEvent("drag",function(){this.fireEvent("resize",b);}.bind(this));}});Drag.Move=new Class({Extends:Drag,options:{droppables:[],container:false,precalculate:false,includeMargins:true,checkDroppables:true},initialize:function(c,b){this.parent(c,b);
this.droppables=$$(this.options.droppables);this.container=document.id(this.options.container);if(this.container&&$type(this.container)!="element"){this.container=document.id(this.container.getDocument().body);
}var a=this.element.getStyle("position");if(a=="static"){a="absolute";}if([this.element.getStyle("left"),this.element.getStyle("top")].contains("auto")){this.element.position(this.element.getPosition(this.element.offsetParent));
}this.element.setStyle("position",a);this.addEvent("start",this.checkDroppables,true);this.overed=null;},start:function(f){if(this.container){var b=this.container.getCoordinates(this.element.getOffsetParent()),c={},e={};
["top","right","bottom","left"].each(function(g){c[g]=this.container.getStyle("border-"+g).toInt();e[g]=this.element.getStyle("margin-"+g).toInt();},this);
var d=this.element.offsetWidth+e.left+e.right;var a=this.element.offsetHeight+e.top+e.bottom;if(this.options.includeMargins){$each(e,function(h,g){e[g]=0;
});}if(this.container==this.element.getOffsetParent()){this.options.limit={x:[0-e.left,b.right-c.left-c.right-d+e.right],y:[0-e.top,b.bottom-c.top-c.bottom-a+e.bottom]};
}else{this.options.limit={x:[b.left+c.left-e.left,b.right-c.right-d+e.right],y:[b.top+c.top-e.top,b.bottom-c.bottom-a+e.bottom]};}}if(this.options.precalculate){this.positions=this.droppables.map(function(g){return g.getCoordinates();
});}this.parent(f);},checkAgainst:function(c,b){c=(this.positions)?this.positions[b]:c.getCoordinates();var a=this.mouse.now;return(a.x>c.left&&a.x<c.right&&a.y<c.bottom&&a.y>c.top);
},checkDroppables:function(){var a=this.droppables.filter(this.checkAgainst,this).getLast();if(this.overed!=a){if(this.overed){this.fireEvent("leave",[this.element,this.overed]);
}if(a){this.fireEvent("enter",[this.element,a]);}this.overed=a;}},drag:function(a){this.parent(a);if(this.options.checkDroppables&&this.droppables.length){this.checkDroppables();
}},stop:function(a){this.checkDroppables();this.fireEvent("drop",[this.element,this.overed,a]);this.overed=null;return this.parent(a);}});Element.implement({makeDraggable:function(a){var b=new Drag.Move(this,a);
this.store("dragger",b);return b;}});var Slider=new Class({Implements:[Events,Options],Binds:["clickedElement","draggedKnob","scrolledElement"],options:{onTick:function(a){if(this.options.snap){a=this.toPosition(this.step);
}this.knob.setStyle(this.property,a);},snap:false,offset:0,range:false,wheel:false,steps:100,mode:"horizontal"},initialize:function(f,a,e){this.setOptions(e);
this.element=document.id(f);this.knob=document.id(a);this.previousChange=this.previousEnd=this.step=-1;var g,b={},d={x:false,y:false};switch(this.options.mode){case"vertical":this.axis="y";
this.property="top";g="offsetHeight";break;case"horizontal":this.axis="x";this.property="left";g="offsetWidth";}this.half=this.knob[g]/2;this.full=this.element[g]-this.knob[g]+(this.options.offset*2);
this.min=$chk(this.options.range[0])?this.options.range[0]:0;this.max=$chk(this.options.range[1])?this.options.range[1]:this.options.steps;this.range=this.max-this.min;
this.steps=this.options.steps||this.full;this.stepSize=Math.abs(this.range)/this.steps;this.stepWidth=this.stepSize*this.full/Math.abs(this.range);this.knob.setStyle("position","relative").setStyle(this.property,-this.options.offset);
d[this.axis]=this.property;b[this.axis]=[-this.options.offset,this.full-this.options.offset];this.bound={clickedElement:this.clickedElement.bind(this),scrolledElement:this.scrolledElement.bindWithEvent(this),draggedKnob:this.draggedKnob.bind(this)};
var c={snap:0,limit:b,modifiers:d,onDrag:this.bound.draggedKnob,onStart:this.bound.draggedKnob,onBeforeStart:(function(){this.isDragging=true;}).bind(this),onComplete:function(){this.isDragging=false;
this.draggedKnob();this.end();}.bind(this)};if(this.options.snap){c.grid=Math.ceil(this.stepWidth);c.limit[this.axis][1]=this.full;}this.drag=new Drag(this.knob,c);
this.attach();},attach:function(){this.element.addEvent("mousedown",this.bound.clickedElement);if(this.options.wheel){this.element.addEvent("mousewheel",this.bound.scrolledElement);
}this.drag.attach();return this;},detach:function(){this.element.removeEvent("mousedown",this.bound.clickedElement);this.element.removeEvent("mousewheel",this.bound.scrolledElement);
this.drag.detach();return this;},set:function(a){if(!((this.range>0)^(a<this.min))){a=this.min;}if(!((this.range>0)^(a>this.max))){a=this.max;}this.step=Math.round(a);
this.checkStep();this.fireEvent("tick",this.toPosition(this.step));this.end();return this;},clickedElement:function(c){if(this.isDragging||c.target==this.knob){return;
}var b=this.range<0?-1:1;var a=c.page[this.axis]-this.element.getPosition()[this.axis]-this.half;a=a.limit(-this.options.offset,this.full-this.options.offset);
this.step=Math.round(this.min+b*this.toStep(a));this.checkStep();this.fireEvent("tick",a);this.end();},scrolledElement:function(a){var b=(this.options.mode=="horizontal")?(a.wheel<0):(a.wheel>0);
this.set(b?this.step-this.stepSize:this.step+this.stepSize);a.stop();},draggedKnob:function(){var b=this.range<0?-1:1;var a=this.drag.value.now[this.axis];
a=a.limit(-this.options.offset,this.full-this.options.offset);this.step=Math.round(this.min+b*this.toStep(a));this.checkStep();},checkStep:function(){if(this.previousChange!=this.step){this.previousChange=this.step;
this.fireEvent("change",this.step);}},end:function(){if(this.previousEnd!==this.step){this.previousEnd=this.step;this.fireEvent("complete",this.step+"");
}},toStep:function(a){var b=(a+this.options.offset)*this.stepSize/this.full*this.steps;return this.options.steps?Math.round(b-=b%this.stepSize):b;},toPosition:function(a){return(this.full*Math.abs(this.min-a))/(this.steps*this.stepSize)-this.options.offset;
}});var Sortables=new Class({Implements:[Events,Options],options:{snap:4,opacity:1,clone:false,revert:false,handle:false,constrain:false},initialize:function(a,b){this.setOptions(b);
this.elements=[];this.lists=[];this.idle=true;this.addLists($$(document.id(a)||a));if(!this.options.clone){this.options.revert=false;}if(this.options.revert){this.effect=new Fx.Morph(null,$merge({duration:250,link:"cancel"},this.options.revert));
}},attach:function(){this.addLists(this.lists);return this;},detach:function(){this.lists=this.removeLists(this.lists);return this;},addItems:function(){Array.flatten(arguments).each(function(a){this.elements.push(a);
var b=a.retrieve("sortables:start",this.start.bindWithEvent(this,a));(this.options.handle?a.getElement(this.options.handle)||a:a).addEvent("mousedown",b);
},this);return this;},addLists:function(){Array.flatten(arguments).each(function(a){this.lists.push(a);this.addItems(a.getChildren());},this);return this;
},removeItems:function(){return $$(Array.flatten(arguments).map(function(a){this.elements.erase(a);var b=a.retrieve("sortables:start");(this.options.handle?a.getElement(this.options.handle)||a:a).removeEvent("mousedown",b);
return a;},this));},removeLists:function(){return $$(Array.flatten(arguments).map(function(a){this.lists.erase(a);this.removeItems(a.getChildren());return a;
},this));},getClone:function(b,a){if(!this.options.clone){return new Element("div").inject(document.body);}if($type(this.options.clone)=="function"){return this.options.clone.call(this,b,a,this.list);
}return a.clone(true).setStyles({margin:"0px",position:"absolute",visibility:"hidden",width:a.getStyle("width")}).inject(this.list).position(a.getPosition(a.getOffsetParent()));
},getDroppables:function(){var a=this.list.getChildren();if(!this.options.constrain){a=this.lists.concat(a).erase(this.list);}return a.erase(this.clone).erase(this.element);
},insert:function(c,b){var a="inside";if(this.lists.contains(b)){this.list=b;this.drag.droppables=this.getDroppables();}else{a=this.element.getAllPrevious().contains(b)?"before":"after";
}this.element.inject(b,a);this.fireEvent("sort",[this.element,this.clone]);},start:function(b,a){if(!this.idle){return;}this.idle=false;this.element=a;
this.opacity=a.get("opacity");this.list=a.getParent();this.clone=this.getClone(b,a);this.drag=new Drag.Move(this.clone,{snap:this.options.snap,container:this.options.constrain&&this.element.getParent(),droppables:this.getDroppables(),onSnap:function(){b.stop();
this.clone.setStyle("visibility","visible");this.element.set("opacity",this.options.opacity||0);this.fireEvent("start",[this.element,this.clone]);}.bind(this),onEnter:this.insert.bind(this),onCancel:this.reset.bind(this),onComplete:this.end.bind(this)});
this.clone.inject(this.element,"before");this.drag.start(b);},end:function(){this.drag.detach();this.element.set("opacity",this.opacity);if(this.effect){var a=this.element.getStyles("width","height");
var b=this.clone.computePosition(this.element.getPosition(this.clone.offsetParent));this.effect.element=this.clone;this.effect.start({top:b.top,left:b.left,width:a.width,height:a.height,opacity:0.25}).chain(this.reset.bind(this));
}else{this.reset();}},reset:function(){this.idle=true;this.clone.destroy();this.fireEvent("complete",this.element);},serialize:function(){var c=Array.link(arguments,{modifier:Function.type,index:$defined});
var b=this.lists.map(function(d){return d.getChildren().map(c.modifier||function(e){return e.get("id");},this);},this);var a=c.index;if(this.lists.length==1){a=0;
}return $chk(a)&&a>=0&&a<this.lists.length?b[a]:b;}});var Asset={javascript:function(f,d){d=$extend({onload:$empty,document:document,check:$lambda(true)},d);
var b=new Element("script",{src:f,type:"text/javascript"});var e=d.onload.bind(b),a=d.check,g=d.document;delete d.onload;delete d.check;delete d.document;
b.addEvents({load:e,readystatechange:function(){if(["loaded","complete"].contains(this.readyState)){e();}}}).set(d);if(Browser.Engine.webkit419){var c=(function(){if(!$try(a)){return;
}$clear(c);e();}).periodical(50);}return b.inject(g.head);},css:function(b,a){return new Element("link",$merge({rel:"stylesheet",media:"screen",type:"text/css",href:b},a)).inject(document.head);
},image:function(c,b){b=$merge({onload:$empty,onabort:$empty,onerror:$empty},b);var d=new Image();var a=document.id(d)||new Element("img");["load","abort","error"].each(function(e){var f="on"+e;
var g=b[f];delete b[f];d[f]=function(){if(!d){return;}if(!a.parentNode){a.width=d.width;a.height=d.height;}d=d.onload=d.onabort=d.onerror=null;g.delay(1,a,a);
a.fireEvent(e,a,1);};});d.src=a.src=c;if(d&&d.complete){d.onload.delay(1);}return a.set(b);},images:function(d,c){c=$merge({onComplete:$empty,onProgress:$empty,onError:$empty,properties:{}},c);
d=$splat(d);var a=[];var b=0;return new Elements(d.map(function(e){return Asset.image(e,$extend(c.properties,{onload:function(){c.onProgress.call(this,b,d.indexOf(e));
b++;if(b==d.length){c.onComplete();}},onerror:function(){c.onError.call(this,b,d.indexOf(e));b++;if(b==d.length){c.onComplete();}}}));}));}};