/* mootools1_2.js */

//MooTools, My Object Oriented Javascript Tools. Copyright (c) 2006-2007 Valerio Proietti, <http://mad4milk.net>, MIT Style License.

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arguments.callee.parent(A);var C=this.element.retrieve("wrapper");this.wrapper=C||new Element("div",{styles:$extend(this.element.getStyles("margin","position"),{overflow:"hidden"})}).wraps(this.element);
this.element.store("wrapper",this.wrapper).setStyle("margin",0);this.now=[];this.open=true;},vertical:function(){this.margin="margin-top";this.layout="height";
this.offset=this.element.offsetHeight;},horizontal:function(){this.margin="margin-left";this.layout="width";this.offset=this.element.offsetWidth;},set:function(A){this.element.setStyle(this.margin,A[0]);
this.wrapper.setStyle(this.layout,A[1]);return this;},compute:function(D,C,B){var A=[];(2).times(function(E){A[E]=Fx.compute(D[E],C[E],B);});return A;},start:function(B,E){if(!this.check(B,E)){return this;
}this[E||this.options.mode]();var D=this.element.getStyle(this.margin).toInt();var C=this.wrapper.getStyle(this.layout).toInt();var A=[[D,C],[0,this.offset]];
var G=[[D,C],[-this.offset,0]];var F;switch(B){case"in":F=A;break;case"out":F=G;break;case"toggle":F=(this.wrapper["offset"+this.layout.capitalize()]==0)?A:G;
}return arguments.callee.parent(F[0],F[1]);},slideIn:function(A){return this.start("in",A);},slideOut:function(A){return this.start("out",A);},hide:function(A){this[A||this.options.mode]();
this.open=false;return this.set([-this.offset,0]);},show:function(A){this[A||this.options.mode]();this.open=true;return this.set([0,this.offset]);},toggle:function(A){return this.start("toggle",A);
}});Element.Properties.slide={set:function(B){var A=this.retrieve("slide");if(A){A.cancel();}return this.store("slide",new Fx.Slide(this,$extend({link:"cancel"},B)));
},get:function(A){if(A||!this.retrieve("slide")){this.set("slide",A);}return this.retrieve("slide");}};Element.implement({slide:function(B){B=B||"toggle";
var A=this.get("slide");switch(B){case"hide":A.hide();break;case"show":A.show();break;default:A.start(B);}return this;}});Fx.Scroll=new Class({Extends:Fx,options:{offset:{x:0,y:0},wheelStops:true},initialize:function(B,A){this.element=this.pass=$(B);
arguments.callee.parent(A);var D=this.cancel.bind(this,false);if($type(this.element)!="element"){this.element=$(this.element.getDocument().body);}var C=this.element;
if(this.options.wheelStops){this.addEvent("onStart",function(){C.addEvent("mousewheel",D);},true);this.addEvent("onComplete",function(){C.removeEvent("mousewheel",D);
},true);}},set:function(){var A=Array.flatten(arguments);this.element.scrollTo(A[0],A[1]);},compute:function(D,C,B){var A=[];(2).times(function(E){A.push(Fx.compute(D[E],C[E],B));
});return A;},start:function(C,H){if(!this.check(C,H)){return this;}var E=this.element.getSize(),F=this.element.getScrollSize(),B=this.element.getScroll(),D={x:C,y:H};
for(var G in D){var A=F[G]-E[G];if($chk(D[G])){D[G]=($type(D[G])=="number")?D[G].limit(0,A):A;}else{D[G]=B[G];}D[G]+=this.options.offset[G];}return arguments.callee.parent([B.x,B.y],[D.x,D.y]);
},toTop:function(){return this.start(false,0);},toLeft:function(){return this.start(0,false);},toRight:function(){return this.start("right",false);},toBottom:function(){return this.start(false,"bottom");
},toElement:function(B){var A=$(B).getPosition(this.element);return this.start(A.x,A.y);}});Fx.Scroll.implement({scrollTo:function(B,A){return this.start(B,A);
}});(function(){var A=Fx.prototype.initialize;Fx.prototype.initialize=function(B){A.call(this,B);var C=this.options.transition;if(typeof C=="string"&&(C=C.split(":"))){var D=Fx.Transitions;
D=D[C[0]]||D[C[0].capitalize()];if(C[1]){D=D["ease"+C[1].capitalize()+(C[2]?C[2].capitalize():"")];}this.options.transition=D;}};})();Fx.Transition=function(B,A){A=$splat(A);
return $extend(B,{easeIn:function(C){return B(C,A);},easeOut:function(C){return 1-B(1-C,A);},easeInOut:function(C){return(C<=0.5)?B(2*C,A)/2:(2-B(2*(1-C),A))/2;
}});};Fx.Transitions=new Hash({linear:$arguments(0)});Fx.Transitions.extend=function(A){for(var B in A){Fx.Transitions[B]=new Fx.Transition(A[B]);}};Fx.Transitions.extend({Pow:function(B,A){return Math.pow(B,A[0]||6);
},Expo:function(A){return Math.pow(2,8*(A-1));},Circ:function(A){return 1-Math.sin(Math.acos(A));},Sine:function(A){return 1-Math.sin((1-A)*Math.PI/2);
},Back:function(B,A){A=A[0]||1.618;return Math.pow(B,2)*((A+1)*B-A);},Bounce:function(D){var C;for(var B=0,A=1;1;B+=A,A/=2){if(D>=(7-4*B)/11){C=-Math.pow((11-6*B-11*D)/4,2)+A*A;
break;}}return C;},Elastic:function(B,A){return Math.pow(2,10*--B)*Math.cos(20*B*Math.PI*(A[0]||1)/3);}});["Quad","Cubic","Quart","Quint"].each(function(B,A){Fx.Transitions[B]=new Fx.Transition(function(C){return Math.pow(C,[A+2]);
});});var Request=new Class({Implements:[Chain,Events,Options],options:{url:"",data:"",headers:{},async:true,method:"post",link:"ignore",isSuccess:null,emulation:true,urlEncoded:true,encoding:"utf-8",evalScripts:false,evalResponse:false},getXHR:function(){return(window.XMLHttpRequest)?new XMLHttpRequest():((window.ActiveXObject)?new ActiveXObject("Microsoft.XMLHTTP"):false);
},initialize:function(A){if(!(this.xhr=this.getXHR())){return ;}this.setOptions(A);this.options.isSuccess=this.options.isSuccess||this.isSuccess;this.headers=new Hash(this.options.headers).extend({"X-Requested-With":"XMLHttpRequest",Accept:"text/javascript, text/html, application/xml, text/xml, */*"});
},onStateChange:function(){if(this.xhr.readyState!=4||!this.running){return ;}this.running=false;this.status=0;$try(function(){this.status=this.xhr.status;
},this);if(this.options.isSuccess.call(this,this.status)){this.response={text:this.xhr.responseText,xml:this.xhr.responseXML};this.success(this.response.text,this.response.xml);
}else{this.response={text:null,xml:null};this.failure();}this.xhr.onreadystatechange=$empty;},isSuccess:function(){return((this.status>=200)&&(this.status<300));
},processScripts:function(A){if(this.options.evalResponse||(/(ecma|java)script/).test(this.getHeader("Content-type"))){return $exec(A);}return A.stripScripts(this.options.evalScripts);
},success:function(B,A){this.onSuccess(this.processScripts(B),A);},onSuccess:function(){this.fireEvent("onComplete",arguments).fireEvent("onSuccess",arguments).callChain();
},failure:function(){this.onFailure();},onFailure:function(){this.fireEvent("onComplete").fireEvent("onFailure",this.xhr);},setHeader:function(A,B){this.headers.set(A,B);
return this;},getHeader:function(A){return $try(function(){return this.getResponseHeader(A);},this.xhr)||null;},check:function(){if(!this.running){return true;
}switch(this.options.link){case"cancel":this.cancel();return true;case"chain":this.chain(this.send.bind(this,arguments));return false;}return false;},send:function(D){if(!this.check(D)){return this;
}this.running=true;var E=$type(D);if(E=="string"||E=="element"){D={data:D};}var A=this.options;D=$extend({data:A.data,url:A.url,method:A.method},D);var G=D.data,C=D.url,H=D.method;
switch($type(G)){case"element":G=$(G).toQueryString();break;case"object":case"hash":G=Hash.toQueryString(G);}if(this.options.emulation&&["put","delete"].contains(H)){var B="_method="+H;
G=(G)?B+"&"+G:B;H="post";}if(this.options.urlEncoded&&H=="post"){var F=(this.options.encoding)?"; charset="+this.options.encoding:"";this.headers.set("Content-type","application/x-www-form-urlencoded"+F);
}if(G&&H=="get"){C=C+(C.contains("?")?"&":"?")+G;G=null;}this.xhr.open(H.toUpperCase(),C,this.options.async);this.xhr.onreadystatechange=this.onStateChange.bind(this);
this.headers.each(function(J,I){try{this.xhr.setRequestHeader(I,J);}catch(K){this.fireEvent("onException",[K,I,J]);}},this);this.fireEvent("onRequest");
this.xhr.send(G);if(!this.options.async){this.onStateChange();}return this;},cancel:function(){if(!this.running){return this;}this.running=false;this.xhr.abort();
this.xhr.onreadystatechange=$empty;this.xhr=this.getXHR();this.fireEvent("onCancel");return this;}});(function(){var A={};["get","post","GET","POST","PUT","DELETE"].each(function(B){A[B]=function(){var C=Array.link(arguments,{url:String.type,data:$defined});
return this.send($extend(C,{method:B.toLowerCase()}));};});Request.implement(A);})();Element.Properties.send={get:function(A){if(A||!this.retrieve("send")){this.set("send",A);
}return this.retrieve("send");},set:function(A){var B=this.retrieve("send");if(B){B.cancel();}return this.store("send",new Request($extend({data:this,link:"cancel",method:this.get("method")||"post",url:this.get("action")},A)));
}};Element.implement({send:function(A){var B=this.get("send");B.send({data:this,url:A||B.options.url});return this;}});Object.toQueryString=Hash.toQueryString;
var XHR=new Class({Extends:Request,options:{update:false},initialize:function(B,A){arguments.callee.parent(A);this.url=B;},request:function(A){return this.send(this.url,A||this.options.data);
},send:function(A,B){if(!this.check(A,B)){return this;}return arguments.callee.parent({url:A,data:B});},success:function(B,A){B=this.processScripts(B);
if(this.options.update){$(this.options.update).empty().set("html",B);}this.onSuccess(B,A);},failure:function(){this.fireEvent("onFailure",this.xhr);}});
var Ajax=XHR;Request.HTML=new Class({Extends:Request,options:{update:false,evalScripts:true,filter:false},processHTML:function(B){var A=B.match(/<body[^>]*>([\s\S]*?)<\/body>/i);
return(A)?A[1]:B;},success:function(D){var C=this.options,A=this.response;A.html=this.processHTML(D).stripScripts(function(E){A.javascript=E;});var B=new Element("div",{html:A.html});
A.elements=B.getElements("*");A.tree=(C.filter)?A.elements.filterBy(C.filter):$A(B.childNodes).filter(function(E){return($type(E)!="whitespace");});if(C.update){$(C.update).empty().adopt(A.tree);
}if(C.evalScripts){$exec(A.javascript);}this.onSuccess(A.tree,A.elements,A.html,A.javascript);}});Element.Properties.load={get:function(A){if(A||!this.retrieve("load")){this.set("load",A);
}return this.retrieve("load");},set:function(A){var B=this.retrieve("load");if(B){B.cancel();}return this.store("load",new Request.HTML($extend({link:"cancel",update:this,method:"get"},A)));
}};Element.implement({load:function(){this.get("load").send(Array.link(arguments,{data:Object.type,url:String.type}));return this;}});Request.JSON=new Class({Extends:Request,options:{secure:true},initialize:function(A){arguments.callee.parent(A);
this.headers.extend({Accept:"application/json","X-Request":"JSON"});},success:function(A){this.response.json=JSON.decode(A,this.options.secure);this.onSuccess(this.response.json,A);
}});JSON.Remote=new Class({options:{key:"json"},Extends:Request.JSON,initialize:function(B,A){arguments.callee.parent(A);this.onComplete=$empty;this.url=B;
},send:function(A){if(!this.check(A)){return this;}return arguments.callee.parent({url:this.url,data:{json:Json.encode(A)}});},failure:function(){this.fireEvent("onFailure",this.xhr);
}});var Drag=new Class({Implements:[Events,Options],options:{snap:6,unit:"px",grid:false,limit:false,handle:false,modifiers:{x:"left",y:"top"}},initialize:function(){var B=Array.link(arguments,{options:Object.type,element:$defined});
this.element=$(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):$(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){this.fireEvent("onBeforeStart",this.element);this.mouse.start=C.page;var A=this.options.limit;this.limit={x:[],y:[]};for(var D in this.options.modifiers){if(!this.options.modifiers[D]){continue;
}this.value.now[D]=this.element.getStyle(this.options.modifiers[D]).toInt();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){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("onStart",this.element).fireEvent("onSnap",this.element);
}},drag:function(A){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.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.options.grid[B]);}this.element.setStyle(this.options.modifiers[B],this.value.now[B]+this.options.unit);
}this.fireEvent("onDrag",this.element);},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("onCancel",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("onComplete",this.element);
}}});Element.implement({makeResizable:function(A){return new Drag(this,$merge({modifiers:{x:"width",y:"height"}},A));}});Drag.Base=Drag;Drag.Move=new Class({Extends:Drag,options:{droppables:[],container:false},initialize:function(C,B){arguments.callee.parent(C,B);
this.droppables=$$(this.options.droppables);this.container=$(this.options.container);var A=(this.element.positioned())?this.element.getStyle("position"):"absolute";
this.element.position(this.element.getRelativePosition()).setStyle("position",A);},start:function(B){if(this.overed){this.overed.fireEvent("leave",[this.element,this]);
this.overed=null;}if(this.container){var D=this.element,J=this.container,E=J.getCoordinates(D.getOffsetParent()),F={},A={};["top","right","bottom","left"].each(function(K){F[K]=J.getStyle("padding-"+K).toInt();
A[K]=D.getStyle("margin-"+K).toInt();},this);var C=D.offsetWidth+A.left+A.right,I=D.offsetHeight+A.top+A.bottom;var H=[E.left+F.left,E.right-F.right-C];
var G=[E.top+F.top,E.bottom-F.bottom-I];this.options.limit={x:H,y:G};}arguments.callee.parent(B);},checkAgainst:function(B){B=B.getCoordinates();var A=this.mouse.now;
return(A.x>B.left&&A.x<B.right&&A.y<B.bottom&&A.y>B.top);},checkDroppables:function(){var A=this.droppables.filter(this.checkAgainst,this).getLast();if(this.overed!=A){if(this.overed){this.overed.fireEvent("leave",[this.element,this]);
}this.overed=A?A.fireEvent("over",[this.element,this]):null;}},drag:function(A){arguments.callee.parent(A);if(this.droppables.length){this.checkDroppables();
}},stop:function(A){this.checkDroppables();if(this.overed){this.overed.fireEvent("drop",[this.element,this]);}else{this.element.fireEvent("emptydrop",this);
}return arguments.callee.parent(A);}});Element.implement({makeDraggable:function(A){return new Drag.Move(this,A);}});Selectors.Pseudo.children={parser:function(A){A=(A)?A.match(/^([-+]?\d*)?([\-+:])?([-+]?\d*)?$/):[null,0,false,0];
if(!A){return false;}A[1]=parseInt(A[1])||0;var B=parseInt(A[3]);A[3]=($chk(B))?B:0;switch(A[2]){case"-":case"+":case":":return{a:A[1],b:A[3],special:A[2]};
default:return{a:A[1],b:0,special:"index"};}},xpath:function(E){var C="";var B="count(../child::*)";var D=E.a+" + "+((E.a<0)?B:0);var A=E.b+" + "+((E.b<0)?B:0);
var F="position()";switch(E.special){case"-":A="(("+D+" - "+A+") mod ("+B+"))";D+=" + 1";A+=" + 1";C="("+A+" < 1 and ("+F+" <= "+D+" or "+F+" >= ("+A+" + "+B+"))) or ("+F+" <= "+D+" and "+F+" >= "+A+")";
break;case"+":A="(("+D+" + "+A+") mod ( "+B+"))";case":":D+=" + 1";A+=" + 1";C="("+A+" < "+D+" and ("+F+" >= "+D+" or "+F+" <= "+A+")) or ("+F+" >= "+D+" and "+F+" <= "+A+")";
break;default:C=(D+" + 1");}return"["+C+"]";},filter:function(G,H){H.i=H.i||0;H.all=H.all||this.parentNode.childNodes;H.len=H.len||H.all.length;var E=H.i;
var C=H.len;var F=H.all;var B=false;var D=G.a+((G.a<0)?C:0);var A=G.b+((G.b<0)?C:0);switch(G.special){case"-":A=(D-A)%C;B=(A<0)?(E<=D||E>=(A+C)):(E<=D&&E>=A);
break;case"+":A=(A+D)%C;case":":B=(A<D)?(E>=D||E<=A):(E>=D&&E<=A);break;default:B=(F[D]==this);}H.i++;return B;}};Hash.Cookie=new Class({Extends:Cookie,options:{autoSave:true},initialize:function(B,A){this.parent(B,A);
this.load();},save:function(){var A=JSON.encode(this.hash);if(A.length>4096){return false;}if(A.length==2){this.erase();}else{this.write(A);}return true;
},load:function(){this.hash=new Hash(JSON.decode(this.read(),true));return this;}});(function(){var A={};Hash.each(Hash.prototype,function(C,B){A[B]=function(){var D=C.apply(this.hash,arguments);
if(this.options.autoSave){this.save();}return D;};});Hash.Cookie.implement(A);})();var Sortables=new Class({Implements:[Events,Options],options:{snap:4,handle:false,revert:false,constrain:false,cloneOpacity:0.7,elementOpacity:0.3},initialize:function(A,B){this.setOptions(B);
this.elements=[];this.lists=[];this.idle=true;this.addLists($$($(A)||A));if(this.options.revert){this.effect=new Fx.Morph(null,$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 C=A.retrieve("sortables:start",this.start.bindWithEvent(this,A));var B=A.retrieve("sortables:insert",this.insert.bind(this,A));(this.options.handle?A.getElement(this.options.handle)||A:A).addEvent("mousedown",C);
A.addEvent("over",B);},this);return this;},addLists:function(){Array.flatten(arguments).each(function(A){this.lists.push(A);this.addItems(A.getChildren());
A.addEvent("over",A.retrieve("sortables:insert",this.insert.bind(this,[A,"inside"])));},this);return this;},removeItems:function(){var A=[];Array.flatten(arguments).each(function(B){A.push(B);
this.elements.remove(B);var D=B.retrieve("sortables:start");var C=B.retrieve("sortables:insert");(this.options.handle?B.getElement(this.options.handle)||B:B).removeEvent("mousedown",D);
B.removeEvent("over",C);},this);return A;},removeLists:function(){var A=[];Array.flatten(arguments).each(function(B){A.push(B);this.lists.remove(B);this.removeItems(B.getChildren());
B.removeEvent("over",B.retrieve("sortables:insert"));},this);return A;},getClone:function(A){return A.clone(true).setStyles({margin:"0px",position:"absolute",visibility:"hidden"}).inject(this.list).position(A.getRelativePosition());
},getDroppables:function(){var A=this.list.getChildren();if(!this.options.constrain){A=this.lists.concat(A).remove(this.list);}return A.remove(this.clone).remove(this.element);
},insert:function(B,A){if(A){this.list=B;this.drag.droppables=this.getDroppables();}A=A||(this.element.getAllPrevious().contains(B)?"before":"after");this.element.inject(B,A);
this.fireEvent("onSort",[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(A);this.drag=this.clone.makeDraggable({snap:this.options.snap,container:this.options.constrain&&this.clone.getParent(),droppables:this.getDroppables(),onStart:function(){B.stop();
this.clone.set("opacity",this.options.cloneOpacity);this.element.set("opacity",this.options.elementOpacity);this.fireEvent("onStart",[this.element,this.clone]);
}.bind(this),onCancel:this.reset.bind(this),onComplete:this.end.bind(this)});this.drag.start(B);},end:function(){this.element.set("opacity",this.opacity);
this.drag.detach();if(this.effect){var A=this.element.getStyles("width","height");var B=this.clone.computePosition(this.element.getPosition(this.clone.offsetParent),this.clone.getParent().positioned());
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("onComplete",this.element);},serialize:function(C,A){var B=this.lists.map(function(D){return D.getChildren().map(A||function(F,E){return F.get("id");
},this);},this);if(this.lists.length==1){C=0;}return $chk(C)&&C>=0&&C<this.lists.length?B[C]:B;}});var Tips=new Class({Implements:[Events,Options],options:{onShow:function(A){A.setStyle("visibility","visible");
},onHide:function(A){A.setStyle("visibility","hidden");},maxTitleChars:30,showDelay:100,hideDelay:100,className:"tool",offsets:{x:16,y:16},fixed:false},initialize:function(B,A){this.setOptions(A);
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/* IE8.js */

/* IE7/IE8.js - copyright 2004-2008, Dean Edwards */
var IEFIX_ENABLED=navigator.appVersion.match(/MSIE/) && navigator.appVersion.match(/MSIE (\d)/)[1] < 8;
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}


/* milkbox.js */

/*
	Milkbox - required: mootools.js v1.2b2+
	v1.1.1 - fix: now you can use links inside the caption. Please use html entities inside the title property.
	by Luca Reghellin (http://www.reghellin.com) April 2008, MIT-style license.
	Inspiration from Slimbox by Christophe Beyls (http://www.digitalia.be) 
	and from THE VERY FIRST MAN ON THE MOON: Lokesh Dhakar (http://www.lokeshdhakar.com/projects/lightbox2/)
	AND OF COURSE, SPECIAL THANKS TO THE MOOTOOLS DEVELOPERS
*/

var Milkbox = new Class({

	Implements:Options,
	
	options:{//set all the options here
		showHideScrollbars:true,
		overlayOpacity:0.7,
		topPosition:0,
		initialWidth:250,
		initialHeight:250,
		resizeDuration:500,
		resizeTransition:'sine:in:out',/*function (ex. Transitions.Sine.easeIn) or string (ex. 'quint:out')*/
		hoverBackgroundPosition:'0 -23px'
	},
	
	initialize: function(options){
		
		this.setOptions(options);
		this.galleries = [];
		this.currentImage = null;
		this.currentIndex = null;
		this.currentGallery = null;
		
		this.specialDescription = null;//for showThisImage
		
		this.mode = null;//'singleImage','imageGallery','showThisImage'
		this.closed = true;
		this.busy = true;//to control keyboard events
				
		this.loadedImages = [];//to check the preloaded images 
				
		this.initMilkbox();
		
	},//end init
	
	initMilkbox:function(){
		
		this.prepareGalleries();
		if(this.galleries.length == 0){ return; };
		
		this.prepareHTML();
		this.prepareEffects();
		this.prepareEvents();

	},
	
	//runs only 1 time per gallery
	openMilkbox:function(gallery,index){

		//show scrollbars
		if (this.options.showHideScrollbars==true) document.getElementsByTagName('html')[0].style.overflowY='auto';

		this.overlay.setStyles({ 'top': -$(window).getScroll().y,'height':$(window).getScrollSize().y+$(window).getScroll().y });
		
		this.center.addClass('mbLoading');
		this.center.setStyle('top',$(window).getScroll().y+this.options.topPosition);

		this.currentGallery = gallery;
		this.currentIndex = index;
		this.overlay.tween('opacity',this.options.overlayOpacity);//onComplete: center.tween opacity
		
		if(gallery.length == 1){
			this.mode = 'singleImage';
			this.loadImages(gallery[index].href);
		} else {
			this.mode = 'imageGallery';
			
			var images = gallery.map(function(item){ return item.href; });

			$$(this.prev, this.next, this.count).setStyles({'display':'block'});
			var border = this.center.getStyle('border-right-width').toInt();//border-right is just ok for design purposes..
			var navWidth = this.prev.getSize().x+this.next.getSize().x+this.close.getSize().x+border;
			this.navigation.setStyle('width',navWidth);
			this.description.setStyle('margin-right',navWidth);
			
			var next = (index != images.length-1) ? images[index+1] : images[0];
			var prev = (index != 0) ? images[index-1] : images[images.length-1];
			var preloads = (prev == next) ? prev : [prev,next]; //if gallery.length == 2, then prev == next
			
			this.loadImages(images[index],preloads);
		}
		
		this.closed = false;
	},
	
	//call with js
	showThisImage:function(image,description){
		
		this.mode = 'showThisImage';
		
		this.specialDescription = description;
		
		this.overlay.setStyles({ 'top': -$(window).getScroll().y,'height':$(window).getScrollSize().y+$(window).getScroll().y });
		
		this.center.addClass('mbLoading');
		this.center.setStyle('top',$(window).getScroll().y+this.options.topPosition);
		
		this.overlay.tween('opacity',this.options.overlayOpacity);//onComplete: center.tween opacity
		this.loadImages(image);
		
		this.closed = false;
	},

 	//see loadImages()
 	showImage:function(image){
 		
 		if(this.closed){ return; };//if you close the FastBox and an onload event is still running
 		
 		var imageBoxSize = this.image.getSize();
 		
 		this.image.setStyles({'opacity':0, 'width':'', 'height':''});
 		
 		var imageSize = new Hash(image.getProperties('width','height')).map(function(item, index){
			return item.toInt();
		});
 		
 		var centerSize = new Hash(this.center.getStyles('width','height')).map(function(item, index){
 			return item.toInt();
		});
 		
 		var targetSize = {};
 		
 		if(imageSize.width != centerSize.width){ 
 			targetSize.width = imageSize.width;
 			targetSize.marginLeft = -(imageSize.width/2).round();
 		};
 		
 		var gap = (imageBoxSize.y > 0) ? centerSize.height - imageBoxSize.y : 0; 

 		var targetHeight = imageSize.height + gap;

 	   targetSize.height = targetHeight;
 	   
		//so nav doesn't move when you click next/prev
		this.image.setStyles({'width':imageSize.width, 'height':imageSize.height})

 		this.center.removeClass('mbLoading');
 		this.center.morph(targetSize);//onComplete: show all items
 		
 	},
 	
	loadImages:function(currentImage,preloads){

			var loadImage = new Asset.image(currentImage, { onload:function(img){
				this.currentImage = img;
				if(!this.loadedImages.contains(currentImage)){ this.loadedImages.push(currentImage); };//see next/prev events
				$$(this.description,this.navigation).setStyle('visibility','hidden');
				this.navigation.setStyle('height','');//reset the height setted in center.morph.onComplete
				$$(this.next,this.prev,this.close).setStyle('backgroundPosition','0 0');
				this.showImage(this.currentImage);
			}.bindWithEvent(this)});
			
			if(preloads && !this.loadedImages.contains(preloads)){
				var preloadImage = new Asset.images(preloads, { onload:function(img){
					if(!this.loadedImages.contains(preloadImage)){ this.loadedImages.push(preloadImage); };//see next/prev events
				}.bindWithEvent(this)});
			};
			
	},
	
	//all the main events
	prepareEvents:function(){
	
		//galleries
		this.galleries.each(function(gallery){
			$$(gallery).addEvent('click',function(e){
				var button=($(e.target).match('a')) ? $(e.target) : $(e.target).getParent('a');
				e.preventDefault();
				this.openMilkbox(gallery, gallery.indexOf(button));
			}.bindWithEvent(this));
		},this);
		
		//next, prev, see next_prev_aux()
		this.next.addEvent('click',this.next_prev_aux.bindWithEvent(this,'next'));
		this.prev.addEvent('click',this.next_prev_aux.bindWithEvent(this,'prev'));
		
		//keyboard next/prev/close
		$(window.document).addEvent('keydown',function(e){
			if(this.mode != 'imageGallery' || this.busy == true){ return; };
			if(e.key == 'right' || e.key == 'space'){ this.next_prev_aux(e,'next'); }
			else if(e.key == 'left'){ this.next_prev_aux(e,'next'); }
			else if(e.key == 'esc'){ this.closeMilkbox(); };
		}.bindWithEvent(this));
		
		
		//css hover doesn't work in ie6, so I must do it via js...
		$$(this.next,this.prev,this.close).addEvents({
				'mouseover':function(e){ 
					var button=($(e.target).match('a')) ? $(e.target) : $(e.target).getParent('a');
					button.setStyle('backgroundPosition',this.options.hoverBackgroundPosition); 
				}.bindWithEvent(this),
				'mouseout':function(){ this.setStyle('backgroundPosition','0 0'); }
		});
		
		
		
		//overlay
		this.overlay.retrieve('tween').addEvent('onComplete',function(){
			if(this.overlay.getStyle('opacity') == this.options.overlayOpacity){ 
				this.center.tween('opacity',1);
			} else if(this.overlay.getStyle('opacity') == 0) {
				this.overlay.setStyles({'height':'','top':''});
			};
		}.bindWithEvent(this));
		
		//center
		this.center.retrieve('morph').addEvent('onComplete',function(){
			
 			 this.image.grab(this.currentImage);
			 this.image.tween('opacity',1);
			 
			 var d = (!(this.mode == 'showThisImage')) ? this.currentGallery[this.currentIndex].getProperty('title') : this.specialDescription;
			 if($chk(d)){ this.description.innerHTML = d; };
			 
			 if(this.mode == 'imageGallery'){ 
			 	this.count.appendText((this.currentIndex+1)+' of '+this.currentGallery.length); 
			 }
			 
			 var currentCenterHeight = this.center.getStyle('height').toInt();
			 
			 this.navigation.setStyle('height',this.bottom.getStyle('height').toInt());//to have the right-border height == total bottom height
			 var bottomSize = this.bottom.getSize().y;
			 
			 //after the 1st time, currentCenterHeight is always > this.image.getSize().y
			 var targetOffset = (currentCenterHeight > this.image.getSize().y) ? (this.bottom.getSize().y+this.image.getSize().y)-currentCenterHeight : bottomSize;

			 this.bottom.setStyle('display','none');//to avoid rendering problems during setFinalHeight

			 this.center.retrieve('setFinalHeight').start(currentCenterHeight,currentCenterHeight+targetOffset);

		}.bindWithEvent(this));
		
		this.center.retrieve('setFinalHeight').addEvent('onComplete',function(){
			this.bottom.setStyles({'visibility':'visible','display':'block'});
			$$(this.description,this.navigation).setStyle('visibility','visible');
			//reset overlay height based on position and height
			var scrollSize = $(window).getScrollSize().y;
			var scrollTop = $(window).getScroll().y;
			
			this.overlay.setStyle('height',scrollSize+scrollTop);
			this.busy = false;
		}.bindWithEvent(this));

		//reset overlay height and position onResize
		window.addEvent('resize',function(){
			if(this.overlay.getStyle('opacity') == 0){ return; };//resize only if visible
			var scrollSize = $(window).getScrollSize().y;
			var scrollTop = $(window).getScroll().y;
			this.overlay.setStyles({ 'height':scrollSize+scrollTop,'top':-scrollTop });
		}.bindWithEvent(this))

		//close
		$$(this.overlay,this.image,this.close).addEvent('click',function(){ this.closeMilkbox(); }.bindWithEvent(this));
		
	},
	
	next_prev_aux:function(e,direction){
		e.preventDefault();
		this.busy = true;
		
		if(direction == "next"){
			var i= (this.currentIndex != this.currentGallery.length-1) ? this.currentIndex += 1 : this.currentIndex = 0;
			var _i= (this.currentIndex != this.currentGallery.length-1) ? this.currentIndex + 1 : 0;
		} else {
			var i= (this.currentIndex != 0) ? this.currentIndex -= 1 : this.currentIndex = this.currentGallery.length-1;
			var _i= (this.currentIndex != 0) ? this.currentIndex - 1 : this.currentGallery.length-1;		
		};

		this.image.empty();
		this.description.empty();
		this.count.empty();
		 
	
		if(!this.loadedImages.contains(this.currentGallery[i].href)){ this.center.addClass('muLoading'); };
		this.loadImages(this.currentGallery[i].href,this.currentGallery[_i].href);
	},
	
	closeMilkbox:function(){
		//hide scrollbars
		if (this.options.showHideScrollbars==true) document.getElementsByTagName('html')[0].style.overflowY='hidden';

		this.cancelAllEffects();
		
		this.currentImage = null;
		this.currentIndex = null;
		this.currentGallery = null;
 		
		$$(this.prev, this.next, this.count).setStyle('display','none');
		var border = this.center.getStyle('border-right-width').toInt();
		var navWidth = this.close.getSize().x+border;
		this.navigation.setStyles({'width':navWidth,'height':'','visibility':'hidden'});
		this.description.setStyle('margin-right',navWidth);
		this.description.empty();
		this.bottom.setStyles({'visibility':'hidden','display':''});
		
   		this.image.setStyles({'opacity':0, 'width':'', 'height':''});
 		this.image.empty();
 		
 		this.count.empty();
		
		this.center.setStyles({'opacity':0,'width':this.options.initialWidth,'height':this.options.initialHeight,'marginLeft':-(this.options.initialWidth/2)});
		this.overlay.tween('opacity',0);//see onComplete in prepareEvents() 
		
		this.mode = null;
		this.closed = true;
	},
	
	cancelAllEffects:function(){
		this.overlay.retrieve('tween').cancel();
		this.center.retrieve('morph').cancel();
		this.center.retrieve('tween').cancel();
		this.center.retrieve('setFinalHeight').cancel();
		this.image.retrieve('tween').cancel();
	},
	
	prepareEffects:function(){
		this.overlay.set('tween',{ duration:'short',link:'cancel' });
		this.center.set('tween',{ duration:'short',link:'chain' });
		this.center.set('morph',{ duration:this.options.resizeDuration,link:'chain',transition:this.options.resizeTransition });
		this.center.store('setFinalHeight',new Fx.Tween(this.center,'height',{duration:'short'}));
		this.image.set('tween',{ link:'chain' });
	},
	
	prepareGalleries:function(){
		var families = [];
		var milkbox_a = [];
		
		$$('a').each(function(a){
			//test 'milkbox' and link extension, and collect all milkbox links
//vivizio   if(a.rel && a.rel.test(/^milkbox/i) && (a.href.contains('.gif') || a.href.contains('.jpg') || a.href.contains('.png'))){
			if(a.rel && a.rel.test(/^milkbox/i) && ((a.href.test(/\.gif/i) || a.href.test(/\.jpg/i) || a.href.test(/\.png/i)))){
				if(a.rel.length>7 && !families.contains(a.rel)){ families.push(a.rel); };
				milkbox_a.push(a);
			}
		},this);

		//console.log(milkbox_a)
		
		//create an array of arrays with all galleries
		milkbox_a.each(function(a){
			$(a).store('href',a.href);
			$(a).store('rel',a.rel);
			if(a.rel.length > 7){
				families.each(function(f,i){
					if(a.rel == f){
						if(!this.galleries[i]){ this.galleries[i] = [] };
						this.galleries[i].push($(a));
					};
				},this);
			} else { this.galleries.push([$(a)]); };
		},this);
		
		//console.log(this.galleries)
	},
		
	prepareHTML:function(){		
		
		this.overlay = new Element('div', { 'id':'mbOverlay','styles':{ 'opacity':'0','visibility':'visible' }}).inject($(document.body));
		
		this.center = new Element('div', {'id':'mbCenter', 'styles':{'width':this.options.initialWidth,'height':this.options.initialHeight,'marginLeft':-(this.options.initialWidth/2),'opacity':0}}).inject($(document.body));
		this.image = new Element('div', {'id':'mbImage'}).inject(this.center);
		
		this.bottom = new Element('div',{'id':'mbBottom'}).inject(this.center).setStyle('visibility','hidden');
		this.navigation = new Element('div',{'id':'mbNavigation'}).setStyle('visibility','hidden');
		this.description = new Element('div',{'id':'mbDescription'}).setStyle('visibility','hidden');

		this.bottom.adopt(this.navigation, this.description, new Element('div',{'class':'clear'}));
		
		this.close = new Element('a',{'id':'mbCloseLink'});
		this.next = new Element('a',{'id':'mbNextLink'});
		this.prev = new Element('a',{'id':'mbPrevLink'});
		this.count = new Element('span',{'id':'mbCount'});
		
		$$(this.next, this.prev, this.count).setStyle('display','none');
		
		this.navigation.adopt(this.close, this.next, this.prev,new Element('div',{'class':'clear'}), this.count);

	}
	
});//END MILKBOX;

window.addEvent('domready', function(){ 
	Milkbox = new Milkbox();
});