function type(val){if(val==null)return null;if(typeof(val)=='object'){if(val.nodeType)return'Element';var otype=String(val.constructor).match(/function\s+(\w+)/);if(val.type)return'Event';else if(otype)return otype[1];else return null;}else{return typeof(val);}}
function contains(array,item){for(var i=0;i<array.length;i++){if(array[i]==item)return true;}
return false;}
function find(array,item){for(var i=0;i<array.length;i++){if(array[i]==item)return i;}
return-1;}
function empty(object){var count=0;for(var k in object)count++;if(count)return false;else return true;}
function targetNode(){var loc=document.location.href;return $(loc.substr(loc.lastIndexOf('#')));}
String.prototype.strip=function(characters){if(!characters)characters=[' '];else if(type(characters)=='string')characters=characters.split('');var end;var start;for(start=0;start<this.length;start++){if(!contains(characters,this.charAt(start)))break;}
for(end=this.length;end>=0;end--){if(!contains(characters,this.charAt(end-1)))break;}
return this.substring(start,end);}
String.prototype.endswith=function(string){return this.substring(this.length-string.length)==string;}
String.prototype.startswith=function(string){return this.substring(0,string.length)==string;}
function Element(nodetype,text,styles){var elem;if(type(nodetype)=='string')nodetype=components(nodetype);if(type(nodetype)=='Object'){elem=$(document.createElement(nodetype.tag||'div'));if(nodetype.id)elem.id=nodetype.id;if(nodetype.classes){for(var i=0;i<nodetype.classes.length;i++){elem.addClass(nodetype.classes[i]);}}
if(nodetype.attrs){for(var attr in nodetype.attrs){elem.setAttribute(attr,nodetype.attrs[attr]);}}}else if(nodetype==null){return document.createTextNode(text);}else if(nodetype.nodeType==1){elem=$(nodetype);}else{elem=nodetype;}
if(text!=null)elem.txt(text);if(styles){for(var s in styles)elem.style[s]=styles[s]}
return elem;}
function Event(etype){var e;if(document.createEvent){e=document.createEvent("MouseEvents");e.initEvent(etype,true,true);}else{e=document.createEventObject();e.type=etype;}
return e;}
function addMethod(name,func){if(!this.methods)this.methods={}
this.methods[name]=func;this[name]=func;}
addMethod.call(Element,'addMethod',addMethod);addMethod.call(Event,'addMethod',addMethod);Event.addMethod('stop',function(neighbourly){if(this.stopPropagation)this.stopPropagation();else this.cancelBubble=true;this.stopped=true;if(!neighbourly){this.neighbourly=false;if(this.preventDefault)this.preventDefault();else this.returnValue=false;}});Element.addMethod('trigger',function(etype,propagate,e){if(this.events){if(!e)e=Event(etype);if(type(e)=='Event')$(e);e.neighbourly=true;e.stopped=false;if(this.events[etype]){for(var i=this.events[etype].length-1;i>=0;i--){this.events[etype][i].call(this,e);if(!e.neighbourly)break;}}}
if(propagate){var node=this;while(node!=document.body&&!e.stopped){node=node.parentNode;$(node).trigger(etype,true,e);}}});Element.addMethod('unevent',function(etype,callback){if(!this.events)return;var idx=find(this.events[etype],callback);if(this.addEventListener){this.removeEventListener(etype,this._events[etype][idx],false);}else{this.detachEvent("on"+etype,this._events[etype][idx]);}
if(idx>=0){this.events[etype].splice(idx,1);this._events[etype].splice(idx,1);}
if(etype=='droppedon'){idx=find(DroppedOn,this);if(idx>=0)DroppedOn.splice(idx,1);}});var ControlKey=256;var Keys={};Keys.PAGE_UP=ControlKey+33;Keys.PAGE_DOWN=ControlKey+34;Keys.HOME=ControlKey+36;Keys.END=ControlKey+35;Keys.DOWN_ARROW=ControlKey+40;Keys.UP_ARROW=ControlKey+38;Keys.LEFT_ARROW=ControlKey+37;Keys.RIGHT_ARROW=ControlKey+39;Keys.INSERT=ControlKey+45;Keys.DELETE=ControlKey+46;Keys.BACKSPACE=ControlKey+8;Keys.ENTER=ControlKey+13;Keys.TAB=ControlKey+9;Keys.ESCAPE=ControlKey+27;Keys.NUM_LOCK=ControlKey+144;Keys.SHIFT=ControlKey+16;Keys.CTRL=ControlKey+17;Keys.ALT=ControlKey+18;Keys.SCROLL_LOCK=ControlKey+145;Keys.PAUSE=ControlKey+19;Keys.CAPS_LOCK=ControlKey+20;Keys.FUNCTION=[];for(var i=0;i<12;i++){Keys.FUNCTION.push(ControlKey+112+i);}
function _mousePos(event){var x=0;var y=0;if(event.pageX||event.pageY){x=event.pageX;y=event.pageY;}else if(event.clientX||event.clientY){x=event.clientX+document.body.scrollLeft+document.documentElement.scrollLeft;y=event.clientY+document.body.scrollTop+document.documentElement.scrollTop;}
return[x,y];}
Event.addMethod('normalizeProperties',function(){this.time=new Date();if(!this.target)this.target=this.srcElement;if(this.relatedTarget)this.other=this.relatedTarget;else if(this.type=='mouseout')this.other=this.toElement;else if(this.type=='mouseover')this.other=this.fromElement;$(this.target);$(this.other);this.mouse={};var xy=_mousePos(this);this.mouse.x=xy[0];this.mouse.y=xy[1];if(this.which==1)this.mouse.primary=true;else if(this.which==2)this.mouse.middle=true;else if(this.which==3)this.mouse.secondary=true;else{if(this.button&1)this.mouse.primary=true;if(this.button&4)this.mouse.middle=true;if(this.button&2)this.mouse.secondary=true;}
var code=this.keyCode||this.which;if(this.type=='keydown'){if((code>=48&&code<=90)||code==32){this.key=String.fromCharCode(code);}
else this.key=ControlKey+code;}
if(this.type=='keyup'){if((code>=48&&code<=90)||code==32){this.key=String.fromCharCode(code);}
else this.key=ControlKey+code;}
if(this.type=='keypress'){if(code<32||code>126)this.key=null
else this.key=String.fromCharCode(code);}});var DroppedOn=[];Element.addMethod('event',function(etype,callback){var elem=this;var callfunc=function(e){e=$(e||window.event);e.normalizeProperties();elem.trigger(e.type,false,e);if(e.type=='mouseout'){if((e.target==elem||e.target.within(elem))&&(elem!=e.other&&!e.other.within(elem))){elem.trigger('mouseleave',false);}}
if(e.type=='mouseover'){if((e.target==elem||e.target.within(elem))&&(elem!=e.other&&!e.other.within(elem))){elem.trigger('mouseenter',false);}}};if(!this.events){this.events={};this._events={};}
if(!this.events[etype]||!this.events[etype].length){this.events[etype]=[];this._events[etype]=[];var addEvent=function(elem,etype,callfunc){if(elem.addEventListener)elem.addEventListener(etype,callfunc,false);else elem.attachEvent('on'+etype,callfunc);}
if(etype=='mouseenter')addEvent(this,'mouseover',callfunc);else if(etype=='mouseleave')addEvent(this,'mouseout',callfunc);else addEvent(this,etype,callfunc);if(etype=='droppedon')DroppedOn.push(this);}
this.events[etype].push(callback);this._events[etype].push(callfunc);});Element.addMethod('append',function(nodetype,text){var elem=Element(nodetype,text);this.appendChild(elem);return elem;});Element.addMethod('prepend',function(nodetype,text){var elem=Element(nodetype,text)
this.insertBefore(elem,this.firstChild);return elem;});Element.addMethod('preinsert',function(nodetype,text){var elem=Element(nodetype,text)
this.parentNode.insertBefore(elem,this);return elem;});Element.addMethod('postinsert',function(nodetype,text){var elem=Element(nodetype,text)
if(this.nextSibling){this.parentNode.insertBefore(elem,this.nextSibling);}else{this.parentNode.appendChild(elem);}
return elem;});Element.addMethod('unlink',function(){while(this.firstChild){this.parentNode.insertBefore(this.firstChild,this);}
this.remove();});Element.addMethod('remove',function(nodetype){if(nodetype==null){this.parentNode.removeChild(this);}else{var elems=this.$$(nodetype);for(var i=0;i<elems.length;i++)elems[i].remove(null);}});Element.addMethod('replace',function(nodetype,text){var elem=Element(nodetype,text);this.postinsert(elem);this.remove();});Element.addMethod('alter',function(attributes,styles){var elem=this;if(type(attributes)=='string')attributes=components(attributes);if(attributes.tag&&!this.matches(attributes.tag)){elem=new Element(attributes.tag);while(this.firstChild)elem.append(this.firstChild);while(this.lastChild)elem.prepend(this.lastChild);this.append(elem);this.unlink();}
if(attributes.id)elem.id=attributes.id;if(attributes.attrs){for(var attr in attributes.attrs){elem.setAttribute(attr,attributes.attrs[attr]);}}
if(attributes.classes){for(var i in attributes.classes){elem.addClass(attributes.classes[i]);}}
if(styles){for(var s in styles)elem.style[s]=styles[s]}
return elem;});Element.addMethod('within',function(ancestor){var ret;try{if(!ancestor)return false;if(this==document.body.parentNode)return false;if(this.parentNode==ancestor)return true;return $(this.parentNode).within(ancestor);}catch(err){return false;}});Element.addMethod('_ancestor',function(selectors,stopat){if(!stopat)stopat=document.body;if(!selectors)selectors='*';if(selectors.substring)selectors=[selectors];if(this.parentNode==null||stopat.within(this.parentNode))return null;for(var i in selectors){if($(this.parentNode).matches(selectors[i]))return[selectors[i],this.parentNode];}
if(this.parentNode==stopat||this.parentNode==document.body)return null;return $(this.parentNode)._ancestor(selectors,stopat);});Element.addMethod('ancestor',function(selectors,stopat){var ancest=this._ancestor(selectors,stopat);if(ancest)return ancest[1];return null;});Element.addMethod('classes',function(){if(!this.className)return[];return this.className.split(' ');});Element.addMethod('hasClass',function(cls){return new RegExp('\\b'+cls+'\\b').test(this.className);});Element.addMethod('removeClass',function(cls){if(!this.hasClass(cls))return false;var rep=this.className.match(' '+cls)?' '+cls:cls;this.className=this.className.replace(rep,'');return true;});Element.addMethod('addClass',function(cls){if(!this.hasClass(cls)){this.className+=this.className?' '+cls:cls;}});Element.addMethod('txt',function(text){if(text!=null){if(this.nodeType==3)this.nodeValue=text;else if(!this.lastChild||this.lastChild.nodeType!=3){elem=document.createTextNode(text);this.appendChild(elem);}
else this.firstChild.nodeValue=text;}
return this.innerText||this.textContent;});Element.addMethod('matches',function(simple,final){if(!final){var selectors=simple.split(',');for(var i=0;i<selectors.length;i++){if(Element.matches.call(this,selectors[i],true))return true;}
return false;}
var comps=components(simple);if(comps.tag&&comps.tag!='*'&&comps.tag.toLowerCase()!=this.nodeName.toLowerCase())return false;if(comps.id&&comps.id!=this.id)return false;if(comps.classes.length){for(var i=0;i<comps.classes.length;i++){if(!Element.hasClass.call(this,comps.classes[i]))return false;}}
if(!empty(comps.attrs)){for(var attr in comps.attrs){var val;val=this.getAttribute(attr);if(!val)val=this[attr];if(!val)return false;if(comps.attrs[attr]&&val!=comps.attrs[attr])return false;}}
return true;});function components(simple){var c;var start;var classes=[];var id=null;var attrs={};var tag=null;simple=simple.strip();while(simple){var i=0;while(true){c=simple.charAt(i);if(!contains(['.','[','#'],c))break;start=c;if(++i>=simple.length)break;}
while(true){c=simple.charAt(i);if(start=='['){if(c==']'){i++;break;}}
else if(contains(['.','[','#'],c))break;if(++i>=simple.length)break;}
var match=simple.substring(0,i);simple=simple.substring(match.length);if(start)match=match.substring(1);if(!start)tag=match;if(start=='#')id=match;if(start=='.')classes.push(match);if(start=='['){var attr=match.split('=',2);if(attr[1])attrs[attr[0]]=attr[1].substring(0,attr[1].length-1);else attrs[attr[0].substring(0,attr[0].length-1)]=null;}}
return{tag:tag,id:id,classes:classes,attrs:attrs};}
function simples(selector){var s=[];while(selector){var combinator=/ *[><\+]* */.exec(selector)[0];selector=selector.substring(combinator.length);var simple;if(selector.indexOf(' ')>=0){simple=selector.substring(0,selector.indexOf(' '));selector=selector.substring(selector.indexOf(' '));}
else{simple=selector;selector='';}
combinator=combinator.strip();if(!combinator)combinator=null;s.push([combinator,simple]);}
return s;}
function $$simple(simple,parent,combinator){if(!simple)return null;var elems=[];$(parent);var comps=components(simple);if(combinator=='+'||combinator=='++'){elems=[$(parent.nextSibling)];if(combinator=='++'&&elems[0].nodeName.charAt(0)=='#'){elems=[$(elems[0].nextSibling)];}}else if(combinator=='<'){elems=[$(parent.parentNode)];}else{if(comps.id){var elem=$(document.getElementById(comps.id));if(elem)elems=[elem];else elems=[]}else{var elems_=parent.getElementsByTagName(comps.tag||'*');for(var i=0;i<elems_.length;i++)elems.push($(elems_[i]));}}
var elems_=[];for(var i=0;i<elems.length;i++){var drop=!elems[i].matches(simple);if(combinator=='>'&&parent!=elems[i].parentNode)drop=true;if(!drop)elems_.push(elems[i]);}
elems=elems_;return elems;}
function $$single(selector,parent){var label;$(parent);if(!selector)return[];var pool=[parent];var pool_=[];var simps=simples(selector);for(var i in simps){combinator=simps[i][0];simple=simps[i][1];pool_=[];for(var j in pool){pool_=pool_.concat($$simple(simple,pool[j],combinator));}
pool=pool_;if(!pool.length)break;}
for(var i in pool)$(pool[i]);return pool;}
function $$(selector,parent){if(parent==null)parent=document;if(selector==null){return[];}else if(type(selector)=='Array'){for(var i=0;i<selector.length;i++){$(selector[i]);}
return selector;}else if(type(selector)=='string'){var elems=[];var selectors=selector.split(',');for(var i in selectors){elems=elems.concat($$single(selectors[i],parent));}
return elems;}else{throw("Unknown type of object passed to $$ function");}}
function $(nodetype,parent){if(!nodetype)return null;var methods=null;if(type(nodetype)=='Element')methods=Element.methods;if(type(nodetype)=='Event')methods=Event.methods;if(methods){if(nodetype._extended)return nodetype;nodetype._extended=[true];for(var name in methods){nodetype[name]=methods[name];}
return nodetype;}
if(type(nodetype)=='string'){var elems=$$(nodetype,parent);if(!elems.length)return null;return elems[0];}
throw("Unknown type of object passed to $ function");}
Element.addMethod('$$',function(selector){return $$(selector,this);});Element.addMethod('$',function(nodetype){return $(nodetype,this);});var _preloadedImages={};function preload(url){_preloadedImages[url]=new Image();_preloadedImages[url].src=url;}
var NetworkTimeout=15000;function request(url,handlers,postdata){var req=null;if(window.XMLHttpRequest){req=new window.XMLHttpRequest();}
else if(window.ActiveXObject){try{req=new ActiveXObject("Msxml2.XMLHTTP");}catch(err){try{req=new ActiveXObject("Microsoft.XMLHTTP");}
catch(err){}}}
if(!req)throw('Browser does not support network requests!');var timeoutHandler=function(){if(handlers.timeout)handlers.timeout({});if(handlers.error)handlers.error({});req.onreadystatechange=function(){};req.abort();}
var timeout=setTimeout(timeoutHandler,NetworkTimeout);req.onreadystatechange=function(){var parsed={};clearTimeout(timeout);if(req.readyState==4){var parseerror=false;try{parsed=decode.json(req.responseText)}catch(err){parseerror=true;}
var stat=0;try{stat=req.status;}catch(err){}
if(stat!=200||parseerror){if(handlers.error)handlers.error(parsed);else if(parseerror)throw("Malformed JSON data");}else if(handlers.success)handlers.success(parsed);if(handlers.complete)handlers.complete(parsed);}else{timeout=setTimeout(timeoutHandler,NetworkTimeout);}};req.open(postdata?'POST':'GET',url,true);if(postdata){var datas=[];for(var key in postdata){datas.push(escape(key)+'='+escape(postdata[key]));}
postdata=datas.join('&');req.setRequestHeader('Content-Type','application/x-www-form-urlencoded');}
req.send(postdata);return req;}
Element.addMethod('request',function(url,handler,postdata){var elem=this;return request(url,{success:function(data){elem.trigger('requestsuccess',false,data);if(handler)handler(data);},complete:function(data){elem.trigger('requestcomplete',false,data);},error:function(data){elem.trigger('requesterror',false,data);},timeout:function(data){elem.trigger('requesttimeout',false,data);},data:function(data){elem.trigger('requestdata',false,data);}},postdata);});var encode={json:function(data){throw("Not Implemented!");},html:function(string){var div=document.createElement('div');var text=document.createTextNode(string);div.appendChild(text);return div.innerHTML;}}
var decode={json:function(string){var data;eval("data = "+string);return data;},html:function(html){var div=Element('div');div.innerHTML=html.replace(/<\/?[^>]+>/gi,'');return div.childNodes[0].nodeValue;}}
function pointin(point,tl,br){if(point[0]<tl[0]||point[0]>br[0])return false;if(point[1]<tl[1]||point[1]>br[1])return false;return true;}
function _cornerIn(tl1,br1,tl2,br2){var corners=[tl1,[br1[0],tl1[1]],br1,[tl1[0],br1[1]]];for(var i=0;i<corners.length;i++){if(pointin(corners[i],tl2,br2))return true;}
return false;}
function overlaps(tl1,br1,tl2,br2){return _cornerIn(tl1,br1,tl2,br2)||_cornerIn(tl2,br2,tl1,br1);}
Element.addMethod('topleft',function(){var dim=this.dimensions();return[dim.x,dim.y];});Element.addMethod('bottomright',function(){var dim=this.dimensions();return[dim.x+dim.width,dim.y+dim.height];});Element.addMethod('center',function(){return[this.offsetLeft+this.offsetWidth/2,this.offsetTop+this.offsetHeight/2];});Element.addMethod('overlaps',function(other){$(other);if(this==other)return false;return overlaps(this.topleft(),this.bottomright(),other.topleft(),other.bottomright());});Element.addMethod('overlapping',function(elems){var over=[];for(var i=0;i<elems.length;i++){if(this.overlaps(elems[i])){over.push(elems[i]);}}
return over;});Element.addMethod('computedStyle',function(){if(window.getComputedStyle){return window.getComputedStyle(this,null);}
else return this.currentStyle;});function ppi(){return $(document.body).pixelsPer('in');}
Element.addMethod('pixelsPer',function(unit){var div=this.append('div');var multiplier=10000;var maxwidth=32767;do{div.style.width=multiplier+(unit=='m'?'cm':unit);multiplier/=10;}while(div.offsetWidth==maxwidth);var ppu=div.offsetWidth*(unit=='m'?100:1)/multiplier;div.remove();return ppu;});var UnitRatios={'m':1,'cm':0.01,'mm':0.001,'in':0.0254};UnitRatios.pt=UnitRatios['in']/72;UnitRatios.pc=UnitRatios['pt']*12;function cssLength(len){var num=parseFloat(len,10);var unit=len.strip(' +-0123456789');return[num,unit];}
function cssUnits(num,arg1,arg2,elem){var to;var from;if(!arg2){to=arg1;var len=cssLength(num);num=len[0];from=len[1];}else{from=arg1;to=arg2;}
if(from=='em'||from=='ex'){if(!elem)throw("Attempt to convert from 'em' or 'ex' without specifying an element");num=num*$(elem).pixelsPer(from);from='px';}
var pixels;if(from=='px'){pixels=num;num=num/$(document.body).pixelsPer('m');from='m';}
if(!UnitRatios[from])throw("Attempt to convert from non-absolute unit '"+from+"'");var meters=num*UnitRatios[from];if(!pixels)pixels=meters*$(document.body).pixelsPer('m');if(to=='em'||to=='ex'){if(!elem)throw("Attempt to convert to 'em' or 'ex' without specifying an element");return pixels/$(elem).pixelsPer(to);}
if(to=='px')return pixels;if(!UnitRatios[to])throw("Attempt to convert to a non-absolute unit");return meters/UnitRatios[to];}
Element.addMethod('cssUnits',function(num,arg1,arg2){return cssUnits(num,arg1,arg2,this);});Element.addMethod('dimensions',function(){var x=y=0;obj=this;if(obj.offsetParent){do{x+=obj.offsetLeft;y+=obj.offsetTop;}while(obj=obj.offsetParent);}
return{x:x,y:y,width:this.offsetWidth,height:this.offsetHeight};});function viewport(){var width=document.documentElement.clientWidth||0;var height=document.documentElement.clientHeight||0;var y=(document.body.scrollTop||document.documentElement.scrollTop)||0;var x=(document.body.scrollLeft||document.documentElement.scrollLeft)||0;return{x:x,y:y,width:width,height:height};}
Element.addMethod('opacity',function(setval){if(setval!=null){this.style.filter='alpha(opacity='+(setval*100)+')';this.style.opacity=String(setval);return;}
setval=0;if(!this.style.opacity&&!this.style.filter)return 1;if(this.style.opacity){setval=parseFloat(this.style.opacity);}else if(this.style.filter){/alpha[]*\([]*setval=([0-9])/.test(this.style.filter);setval=parseInt(RegExp.$1,10)/100;}
return setval;});function cssColor(color){var r,g,b;color=color.strip();if(color.startswith('#')&&color.length==7){r=parseInt(color.substring(1,3),16);g=parseInt(color.substring(3,5),16);b=parseInt(color.substring(5,7),16);}else if(color.startswith('#')&&color.length==4){r=color.charAt(1);g=color.charAt(2);b=color.charAt(3);r=parseInt(r+r,16);g=parseInt(g+g,16);b=parseInt(b+b,16);}else if(color.startswith('rgb')){var rgb=color.substring(4,color.length-1).split(',');r=parseInt(rgb[0],10);g=parseInt(rgb[1],10);b=parseInt(rgb[2],10);}else if(color=='transparent'){throw("Given color is transparent, no valid RGB value");}else{var table=Element('table');table.bgColor=color;var computedStyle=table.computedStyle();if(computedStyle&&computedStyle.backgroundColor){table.style.backgroundColor=color;color=table.computedStyle().backgroundColor;}else{color=table.bgColor;}
return cssColor(color);}
return[r/256,g/256,b/256];}
cssColour=cssColor;function color2CSS(rgb){return'rgb('+Math.round(rgb[0]*256)+', '+Math.round(rgb[1]*256)+', '+Math.round(rgb[2]*256)+')';}
colour2CSS=color2CSS;Element.addMethod('show',function(){if(this._display)this.style.display=this._display;else this.style.display='block';});Element.addMethod('hide',function(){if(this.style.display!='none')this._display=this.computedStyle()['display'];this.style.display='none';});function debug(){}function selection(frame){this.document=frame||document;this.implementation=selection.implementation;if(this.implementation=='w3c')this.range=this.document.createRange();else this.range=this.document.body.createTextRange();this.retrieve=function(){if(this.implementation=='w3c'){var sel=window.getSelection();if(sel.rangeCount>=1)this.range=sel.getRangeAt(0);}else{this.range=this.document.selection.createRange();}
this.setup();};this.setup=function(){if(this.implementation=='w3c'){this.rangetype='w3c';this.collapsed=true;this.enclosure=null;this.start={node:this.range.startContainer,offset:this.range.startOffset};this.end={node:this.range.endContainer,offset:this.range.endOffset};this.collapsed=this.range.collapsed;this.enclosure=this.range.commonAncestorContainer;if(this.start.node.nodeType==1&&!this.text().replace(/\s/g,'')){this.enclosure=this.start.node.childNodes[this.start.offset];}}else{this.collapsed=false;if(this.range.item){this.rangetype='mscontrol';this.enclosure=this.range.item(0);}else{this.rangetype='mstext';this.enclosure=this.range.parentElement();if(!this.range.htmlText)this.collapsed=true;}
this.ieSetBoundaries();}
if(this.enclosure){if(this.enclosure.nodeType==3){this.enclosure=this.enclosure.parentNode;}
$(this.enclosure);}};this.text=function(){if(this.implementation=='ms'){if(this.rangetype=='mscontrol')return'';return this.range.text;}else{return this.range.toString();}};this.hierarchy=function(topnode){if(!topnode)topnode=this.document.body.parentNode;var node=this.enclosure;var list=[];$(topnode);if(!node.within(topnode))return list;if(!node)return list;while(node!=topnode){list.push(node);node=node.parentNode;}
return list;};this.surround=function(attributes,defaultText,styles){var newnode=Element(attributes,null,styles);if(this.collapsed)newnode.txt(defaultText);if(this.implementation=='w3c'){if(this.collapsed){this.range.insertNode(newnode);this.selectNodeContents(newnode);}else{this.range.surroundContents(newnode);}}else{if(this.rangetype=='mscontrol'){this.enclosure.postinsert(newnode);newnode.append(this.enclosure);return;}
var parent=Element('div');parent.append(newnode);if(!this.collapsed){newnode.innerHTML=this.range.htmlText;}
this.range.pasteHTML(parent.innerHTML);this.range.moveStart('character',-(newnode.innerText.length));}
this.setup();};this.ieSetBoundaries=function(){if(this.rangetype=='mscontrol'){this.start={node:this.range.item(0),offset:0};this.end={node:this.range.item(0),offset:0};return;}
var startRange=this.range.duplicate();var endRange=this.range.duplicate();startRange.collapse(true);endRange.collapse(false);var offset=function(collapsedRange){var tmprange=collapsedRange.duplicate();var element=collapsedRange.parentElement();tmprange.moveToElementText(element);tmprange.setEndPoint('EndToStart',collapsedRange);return tmprange.text.length;}
this.start={node:startRange.parentElement(),offset:offset(startRange)};this.end={node:endRange.parentElement(),offset:offset(endRange)};};this.overlapping=function(){var overlapping=[];var started=false;var descendants=this.enclosure.$$('*');descendants.push(this.enclosure);var start=this.start.node;if(start.nodeType==3)start=start.parentNode;var end=this.end.node;if(end.nodeType==3)end=end.parentNode;for(var d in descendants){if(descendants[d]==start)started=true;if(!started)continue;overlapping.push(descendants[d]);if(descendants[d]==end)break;}
return overlapping;};this.activate=function(){if(this.implementation=='w3c'){var sel=window.getSelection();sel.removeAllRanges();sel.addRange(this.range);}else{this.range.select();}};this.collapse=function(to_start){if(this.rangetype!='mscontrol')this.range.collapse(to_start);this.setup();}
this.selectNode=function(node){if(this.implementation=='ms'){this.range=this.document.body.createTextRange();this.range.moveToElementText(node);}else{this.range.selectNode(node);}
this.setup();};this.selectNodeContents=function(node){if(this.implementation=='ms')this.selectNode(node);else this.range.selectNodeContents(node);this.setup();}}
selection.implementation=window.getSelection?'w3c':'ms';var Widgets={drag:function(params){params=this.smartParams({constraint:'string',minx:'int',maxx:'int',miny:'int',maxy:'int',drag:'selector'},params);var elem=this;if(params.drag)elem=$(params.drag);this.event('mousedown',function(e){var style=elem.computedStyle();if(style.position=='static'||!style.position)elem.style.position='relative';var mouseOrig={x:e.mouse.x,y:e.mouse.y};var left=style.left;var top=style.top;if(left=='auto')left='0px';if(top=='auto')top='0px';elem._orig={x:elem.cssUnits(left,'px'),y:elem.cssUnits(top,'px')};var move=function(e){var shift={x:elem._orig.x+e.mouse.x-mouseOrig.x,y:elem._orig.y+e.mouse.y-mouseOrig.y};if(params.maxx)shift.x=Math.min(shift.x,params.maxx);if(params.maxy)shift.y=Math.min(shift.y,params.maxy);if(params.minx)shift.x=Math.max(shift.x,params.minx);if(params.miny)shift.y=Math.max(shift.y,params.miny);if(params.constraint=='x')shift.y=0;if(params.constraint=='y')shift.x=0;elem.style.left=shift.x+"px";elem.style.top=shift.y+"px";e.stop();};var drop=function(e){$(document).unevent('mousemove',move);document.unevent('mouseup',drop);document.unevent('keypress',drop);var over=findOver(e.mouse);if(over){var e=Event('droppedon');e.other=elem;over.trigger('droppedon',false,e);}else{elem.trigger('release');}
var e=Event('drop');if(over)e.other=over;elem.trigger('drop',false,e);};var findOver=function(mouse){var overs=elem.overlapping(DroppedOn);var over=null;for(var i=0;i<overs.length;i++){if(pointin([mouse.x,mouse.y],overs[i].topleft(),overs[i].bottomright())){over=overs[i];break;}}
if(overs.length&&!over)over=overs[0];return over;};$(document).event('mousemove',move);document.event('mouseup',drop);document.event('keypress',drop);elem.trigger('drag');e.stop();});var release=function(e){elem.style.left=elem._orig.x+'px';elem.style.top=elem._orig.y+'px';};elem.event('release',release);}};Element.addMethod('smartParams',function(names,params){var newparams={};for(var n in names){var ptype=names[n];var val=this.getAttribute(n);if(params&&params[n])newparams[n]=params[n];else if(ptype=='float')newparams[n]=parseFloat(val);else if(ptype=='int')newparams[n]=parseInt(val,10);else newparams[n]=val;}
return newparams;});Element.addMethod('createWidget',function(wtype,params){Widgets[wtype].call(this,params);this._iswidget=[true];});Element.addMethod('createWidgets',function(){if(!(this.contentEditable==true||this.contentEditable=='true'||this.getAttribute('widget')=='editor')){var children=this.children||this.childNodes;for(var i in children){if(children[i].nodeType!=1)continue;Element.createWidgets.call(children[i]);}}
if(this._iswidget)return;if(this.getAttribute('widget')){$(this).createWidget(this.getAttribute('widget'));}});function unmungeEmail(e){var params=this.smartParams({title:'string',href:'string'},e);var email=params.href.substring('mailto '.length);var titleWords=params.title.split(' ');var missing=titleWords[titleWords.length-1];email=email.replace(/\.\.\.*/,missing);this.href="mailto:"+email;this.title='Click to email';this.txt(email);}
Element.addMethod('clearEmptyInputs',function(){var elems=this.getElementsByTagName('*');var i;for(i=0;i<elems.length;i++){if($(elems[i]).hasClass('empty')&&elems[i].getAttribute('eg')){elems[i].value='';elems[i].removeClass('empty');}}});Element.addMethod('addEg',function(params){params=this.smartParams({eg:'string'},params);if(this.value==params.eg||!this.value){this.addClass('empty');this.value=params.eg;}});Element.addMethod('removeEg',function(){if(this.hasClass('empty')){if(this.hasClass('focus')){this.removeClass('focus');this.event('keydown',this.removeEg);}else{this.value='';}
this.removeClass('empty');this.focus();}});var Smarts={'a':function(params){params=this.smartParams({href:'string'},params);if(params.href&&params.href.indexOf('mailto')>=0&&params.href.indexOf('...')>=0){this.event('mouseover',unmungeEmail);}},'form':function(){this.event('submit',this.clearEmptyInputs);if(this.hasClass('disabled')){var inputs=this.$$('input, select, textarea');for(j=0;j<inputs.length;j++){inputs[j].disabled=true;}}},'[eg]':function(){this.event('focus',this.removeEg);this.event('mousedown',this.removeEg);this.event('blur',this.addEg);this.addEg();},'[preload]':function(params){params=this.smartParams({preload:'string',href:'string'},params);preload(params.href||params.preload);}};Element.addMethod('smarten',function(){for(var e in Smarts){var ev=Smarts[e];if(Element.matches.call(this,e)){$(this);if(type(ev)=='function')ev.call(this);else{for(var evtype in ev)this.event(evtype,ev[evtype]);}}}
if(!(this.contentEditable==true||this.contentEditable=='true'||this.getAttribute('widget')=='editor')){var children=this.children||this.childNodes;for(var i in children){if(children[i].nodeType!=1)continue;Element.smarten.call(children[i]);}}});function frameedit(){if(document.execCommand)return false;return true;}
var EditorImages={};var EditorLinks={};var EditButtons={query:function(label,getDefault,action){var button=new Element('button',label,{fontWeight:'bold'});button.event('click',function(e){this.editor.saveSelection(e);var defaultValue=getDefault(this.editor);var value=prompt(label,defaultValue);if(value)this.editor[action](value,label+' text');this.editor.restoreSelection(e);});button.style.marginRight='10px';button.setAttribute('type','button');return button;},button:function(label,action){var button=new Element('button',label,{fontWeight:'bold'});button.event('click',function(e){this.editor.saveSelection(e);this.editor[action](this.value,label+' text');this.editor.restoreSelection(e);});button.style.marginRight='10px';button.setAttribute('type','button');return button;},execbutton:function(label,action){var button=new Element('button',label,{fontWeight:'bold'});button.event('click',function(e){this.editor[action](this.value,label+' text');});button.style.marginRight='10px';button.setAttribute('type','button');return button;},select:function(options,label,action){var select=new Element('select');var opt=new Element('option[value=]',label);select.append(opt);function optionElement(value,label){return new Element('option[value='+value+']',label);}
for(var value in options){var node;if(type(options[value])=='Object'){node=new Element('optgroup[label='+value+']',{fontWeight:'bold'});for(var groupval in options[value])node.append(optionElement(groupval,options[value][groupval]));}else{node=optionElement(value,options[value]);}
select.append(node);}
var clicked=false;select.event('change',function(e){this.editor.saveSelection(e);this.editor[action](this.value,this.$('option[value='+this.value+']').txt());this.value='';this.editor.restoreSelection(e);clicked=false;});select.event('mousedown',function(e){if(!clicked){this.editor.saveSelection();clicked=true;}});select.style.marginRight='10px';return select;},list:function(){return this.button('list','list');},sup:function(){return this.execbutton('^','sup');},sub:function(){return this.execbutton('v','sub');},strike:function(){return this.execbutton('strike','strike');},bold:function(){return this.execbutton('b','bold');},italic:function(){return this.execbutton('i','italic');},fontsize:function(){var sizes={'75%':'Small','100%':'Normal','140%':'Large'};return this.select(sizes,'Font size','fontsize');},font:function(){var fonts={'Courier New,monospace':'Courier','Verdana, sans-serif':'Verdana','Times New Roman, serif':'Times'};return this.select(fonts,'Font','font');},heading:function(){var markups={};for(var i=1;i<=6;i++)markups['h'+i]='Heading '+i;return this.select(markups,'Heading','toggleBlock');},alignment:function(){var aligns={left:"Left",center:"Center",right:"Right",justify:"Justify"};return this.select(aligns,'Justify/align','alignment');},unformat:function(){return this.execbutton('unformat','unformat');},images:function(){return this.select(EditorImages,'Insert image','image');},links:function(){return this.select(EditorLinks,'Link to existing page','link');},link:function(){return this.query('create/edit link',function(editor){if(!editor.inside())return;var a=editor.enclosure('a');var link='';if(a)link=a.getAttribute('href');return link;},'link');}};Widgets['editbar']=function(params){params=this.smartParams({editor:'selector',buttons:'string'},params);this.editor=this.$(params.editor);if(type(params.buttons)=='string')params.buttons=params.buttons.split(' ');if(params.buttons)this.buttons=params.buttons;else this.buttons=['bold','italic'];for(var i in this.buttons){if(!EditButtons[this.buttons[i]])throw"Unknown button '"+this.buttons[i]+"'";var button=this.append(EditButtons[this.buttons[i]]());button.editor=this.editor;button.setAttribute('name','button_'+this.buttons[i]);}
this.style.display='block';this.style.marginTop='5px';this.style.padding='0.5%';if(!this.style.width)this.style.width='99%';if(!this.style.border){this.style.border='1px solid #ccc';this.style.borderTopRightRadius='10px';this.style.borderTopLeftRadius='10px';}
if(!this.style.backgroundColor){this.style.backgroundColor='#f5f5f5';}};Widgets['editor']=function(params){if(frameedit()){}else{this.doc=$(document);this.contentEditable=true;this.html=function(){return this.innerHTML;};this.execCommand=function(arg1,arg2,arg3){this.doc.execCommand(arg1,arg2,arg3);};}
try{this.doc.execCommand('styleWithCSS',null,false);}catch(e){}
var form=this.ancestor('form');var hidden=null;if(form){hidden=form.prepend('input');hidden.setAttribute('name',this.getAttribute('name'));this.setAttribute('name','old-'+this.getAttribute('name'));this.removeAttribute('name');hidden.style.display='none';hidden.value=this.html();}
if(selection.implementation=='w3c'){this.event('mousedown',function(e){if(e.target.matches('img')){this.setActive();this.selection.selectNode(e.target);this.selection.activate();}});}
this.selection=new selection();if(!this.setActive)this.setActive=function(){this.focus();};this.saveSelection=function(e){if(selection.implementation=='ms'&&this.doc.selection.type!='Control')this.setActive();this.selection.retrieve();if(e)e.stop();return;};this.restoreSelection=function(e){this.setActive();this.selection.activate();if(e&&e.type=='mousedown')e.stop();};this.enclosure=function(matches){var enclosure=this.selection.enclosure;if(!enclosure.within(this))return null;if(matches&&!enclosure.matches(matches))enclosure=enclosure.ancestor(matches,this);return enclosure;};this.inside=function(){var enclosure=this.selection.enclosure;var ret=enclosure&&(enclosure.within(this)||enclosure==this);return ret;};this.hierarchy=function(){return this.selection.hierarchy(this);};this.insert=function(attributes,defaultText,styles){if(!this.inside())return;var collapsed=this.selection.collapsed;this.selection.surround(attributes,defaultText,styles);if(!collapsed)this.selection.collapse(false);this.trigger('change');};this.span=function(attributes,defaultText,styles){return this.insert(attributes,defaultText,styles);};this.alterSelection=function(attributes,defaultText,styles){var newnode;if(!this.inside())return;var enclosure=this.enclosure(attributes.tag);if(type(attributes)=='string')attributes=components(attributes);if(enclosure){newnode=enclosure.alter(attributes,styles);if(newnode!=enclosure){this.selection.selectNodeContents(newnode);this.selection.collapse(true);}}else{this.insert(attributes,defaultText,styles);}
this.trigger('change');};this.toggleBlock=function(nodetype,defaultText,styles){if(!this.inside())return;var enclosure=this.enclosure();if(!enclosure){this.surround(nodetype,defaultText,styles);return;}
var newnode;if(enclosure.matches(nodetype)){var prevtag='div';if(enclosure.prevtag)prevtag=enclosure.prevtag[0];newnode=enclosure.alter(prevtag,styles);}else{var prevtag=enclosure.nodeName;newnode=enclosure.alter(nodetype,styles);newnode.prevtag=[prevtag];}
if(defaultText&&!enclosure.txt()){enclosure.txt(defaultText);}
if(newnode!=enclosure){this.selection.selectNode(newnode);this.selection.collapse(true);}
this.trigger('change');};this.list=function(){this.execCommand('insertunorderedlist',null,null);this.trigger('change');};this.unformat=function(){this.execCommand('removeformat',null,null);};this.image=function(value){this.insert('img[src='+value+']');};this.link=function(link,defaultText){this.alterSelection({tag:'a',attrs:{'href':link}},defaultText);};this.alignment=function(value){if(!this.inside())return;var overlapping=this.selection.overlapping();for(var i in overlapping){if(overlapping[i]==this)continue;overlapping[i].style.textAlign=value;}
this.trigger('change');};this.sup=function(){this.execCommand('superscript',null,null);};this.sub=function(_,defaultText){this.execCommand('subscript',null,null);};this.strike=function(_,defaultText){this.execCommand('strikethrough',null,null);};this.bold=function(_,defaultText){this.execCommand('bold',null,null);};this.italic=function(_,defaultText){this.execCommand('italic',null,null);};this.font=function(value,defaultText){this.execCommand('fontname',null,value);};this.fontsize=function(value,defaultText){this.span('span',defaultText,{fontSize:value});};if(!this.style.padding)this.style.padding='5px';if(!this.style.borderWidth){this.style.border='1px solid #ccc';this.style.borderTop='1px solid white';}
this.style.outline='none';this.style.overflow='auto';this.style.height=viewport().height*2/3+'px';var updateValue=function(e){if(form)hidden.value=this.html();e.stop();};this.event('change',updateValue);this.event('keyup',function(e){this.trigger('change',e);this.trigger('move',e);});this.event('mouseup',function(e){this.trigger('change',e);this.trigger('move',e);});this.event('keypress',editkeys);};function editkeys(event){var handled=false;if(event.ctrlKey){handled=true;if(event.key=='b'){this.markup('bold');}else if(event.key=='i'){this.markup('italic');}else if(event.key=='_'){this.markup('createlink');}else{handled=false;}}
if(handled)event.stop();}