//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.

MooTools.More={'version':'1.2.3.1'};Element.implement({measure:function(fn){var vis=function(el){return!!(!el||el.offsetHeight||el.offsetWidth);};if(vis(this))return fn.apply(this);var parent=this.getParent(),toMeasure=[],restorers=[];while(!vis(parent)&&parent!=document.body){toMeasure.push(parent.expose());parent=parent.getParent();}
var restore=this.expose();var result=fn.apply(this);restore();toMeasure.each(function(restore){restore();});return result;},expose:function(){if(this.getStyle('display')!='none')return $empty;var before=this.style.cssText;this.setStyles({display:'block',position:'absolute',visibility:'hidden'});return function(){this.style.cssText=before;}.bind(this);},getDimensions:function(options){options=$merge({computeSize:false},options);var dim={};var getSize=function(el,options){return(options.computeSize)?el.getComputedSize(options):el.getSize();};if(this.getStyle('display')=='none'){dim=this.measure(function(){return getSize(this,options);});}else{try{dim=getSize(this,options);}catch(e){}}
return $chk(dim.x)?$extend(dim,{width:dim.x,height:dim.y}):$extend(dim,{x:dim.width,y:dim.height});},getComputedSize:function(options){options=$merge({styles:['padding','border'],plains:{height:['top','bottom'],width:['left','right']},mode:'both'},options);var size={width:0,height:0};switch(options.mode){case'vertical':delete size.width;delete options.plains.width;break;case'horizontal':delete size.height;delete options.plains.height;break;}
var getStyles=[];$each(options.plains,function(plain,key){plain.each(function(edge){options.styles.each(function(style){getStyles.push((style=='border')?style+'-'+edge+'-'+'width':style+'-'+edge);});});});var styles={};getStyles.each(function(style){styles[style]=this.getComputedStyle(style);},this);var subtracted=[];$each(options.plains,function(plain,key){var capitalized=key.capitalize();size['total'+capitalized]=0;size['computed'+capitalized]=0;plain.each(function(edge){size['computed'+edge.capitalize()]=0;getStyles.each(function(style,i){if(style.test(edge)){styles[style]=styles[style].toInt()||0;size['total'+capitalized]=size['total'+capitalized]+styles[style];size['computed'+edge.capitalize()]=size['computed'+edge.capitalize()]+styles[style];}
if(style.test(edge)&&key!=style&&(style.test('border')||style.test('padding'))&&!subtracted.contains(style)){subtracted.push(style);size['computed'+capitalized]=size['computed'+capitalized]-styles[style];}});});});['Width','Height'].each(function(value){var lower=value.toLowerCase();if(!$chk(size[lower]))return;size[lower]=size[lower]+this['offset'+value]+size['computed'+value];size['total'+value]=size[lower]+size['total'+value];delete size['computed'+value];},this);return $extend(styles,size);}});(function(){var original=Element.prototype.position;Element.implement({position:function(options){if(options&&($defined(options.x)||$defined(options.y)))return original?original.apply(this,arguments):this;$each(options||{},function(v,k){if(!$defined(v))delete options[k];});options=$merge({relativeTo:document.body,position:{x:'center',y:'center'},edge:false,offset:{x:0,y:0},returnPos:false,relFixedPosition:false,ignoreMargins:false,allowNegative:false},options);var parentOffset={x:0,y:0};var parentPositioned=false;var offsetParent=this.measure(function(){return document.id(this.getOffsetParent());});if(offsetParent&&offsetParent!=this.getDocument().body){parentOffset=offsetParent.measure(function(){return this.getPosition();});parentPositioned=true;options.offset.x=options.offset.x-parentOffset.x;options.offset.y=options.offset.y-parentOffset.y;}
var fixValue=function(option){if($type(option)!='string')return option;option=option.toLowerCase();var val={};if(option.test('left'))val.x='left';else if(option.test('right'))val.x='right';else val.x='center';if(option.test('upper')||option.test('top'))val.y='top';else if(option.test('bottom'))val.y='bottom';else val.y='center';return val;};options.edge=fixValue(options.edge);options.position=fixValue(options.position);if(!options.edge){if(options.position.x=='center'&&options.position.y=='center')options.edge={x:'center',y:'center'};else options.edge={x:'left',y:'top'};}
this.setStyle('position','absolute');var rel=document.id(options.relativeTo)||document.body;var calc=rel==document.body?window.getScroll():rel.getPosition();var top=calc.y;var left=calc.x;if(Browser.Engine.trident){var scrolls=rel.getScrolls();top+=scrolls.y;left+=scrolls.x;}
var dim=this.getDimensions({computeSize:true,styles:['padding','border','margin']});if(options.ignoreMargins){options.offset.x=options.offset.x-dim['margin-left'];options.offset.y=options.offset.y-dim['margin-top'];}
var pos={};var prefY=options.offset.y;var prefX=options.offset.x;var winSize=window.getSize();switch(options.position.x){case'left':pos.x=left+prefX;break;case'right':pos.x=left+prefX+rel.offsetWidth;break;default:pos.x=left+((rel==document.body?winSize.x:rel.offsetWidth)/2)+prefX;break;}
switch(options.position.y){case'top':pos.y=top+prefY;break;case'bottom':pos.y=top+prefY+rel.offsetHeight;break;default:pos.y=top+((rel==document.body?winSize.y:rel.offsetHeight)/2)+prefY;break;}
if(options.edge){var edgeOffset={};switch(options.edge.x){case'left':edgeOffset.x=0;break;case'right':edgeOffset.x=-dim.x-dim.computedRight-dim.computedLeft;break;default:edgeOffset.x=-(dim.x/2);break;}
switch(options.edge.y){case'top':edgeOffset.y=0;break;case'bottom':edgeOffset.y=-dim.y-dim.computedTop-dim.computedBottom;break;default:edgeOffset.y=-(dim.y/2);break;}
pos.x=pos.x+edgeOffset.x;pos.y=pos.y+edgeOffset.y;}
pos={left:((pos.x>=0||parentPositioned||options.allowNegative)?pos.x:0).toInt(),top:((pos.y>=0||parentPositioned||options.allowNegative)?pos.y:0).toInt()};if(rel.getStyle('position')=='fixed'||options.relFixedPosition){var winScroll=window.getScroll();pos.top=pos.top.toInt()+winScroll.y;pos.left=pos.left.toInt()+winScroll.x;}
if(options.returnPos)return pos;else this.setStyles(pos);return this;}});})();