$ = function(s){return new _$(s)};

$.extend = function(){

function _getEls(sel,par){

function _$(sel,par){ var _=_getEls(sel,par); for(var x in _) this[x]=_[x]; if(!this.length) this.length = _.length; };

_$.prototype = {

each : function(f) { for(var i=0;i<this.length;i++) f.call(this[i]); return this },

remove : function() { this.each(function(){if(this.parentNode) this.parentNode.removeChild(this)}); return this },

clone : function(noc) { var r = [];this.each(function(){var cl=this.cloneNode(!noc);cl._originalNode=this;r.push(cl)});return $(r) },

replaceWith : function(el) { var me = this; if(me[0]) { if(el.each) el.each(function(){ me[0].parentNode.insertBefore(this,me[0]); }); else me[0].parentNode.insertBefore(el,me[0]); me.remove(); } return this },

insertBefore: function(el) { el=el.length?el[0]:el; this.each(function(){el.parentNode.insertBefore(this,el)})},

prependTo : function(el) { el=typeof el=='string'?$(el)[0]:el.length?el[0]:el; this.each(function(){el.insertBefore(this,el.firstChild)}); return this },

appendTo : function(el) { el=typeof el=='string'?$(el)[0]:el.length?el[0]:el; this.each(function(){el.appendChild(this)}); return this },

append : function(el) { if(this[0]) $(el).appendTo(this[0]); return this },

parent : function() { var r = [];this.each(function(){if(r.indexOf(this.parentNode)<0) r.push(this.parentNode)}); return new _$(r) },

closest : function(sel) { var r = [];this.each(function(){var pn = this; while(pn=pn.parentNode) if($(pn).filter(sel)[0]) return r.indexOf(pn)<0&&r.push(pn)}); return new _$(r) },

children : function(vsel) { var sel = typeof vsel == 'string' ? vsel : '*';var ce = [];this.each(function(){ var e = this.querySelectorAll(sel);for(var i=0;i<e.length;i++) if(e[i].parentNode==this && (vsel instanceof _$?vsel.has(e[i]):1)) ce.push(e[i]) }); return new _$(ce) },

siblings : function(sel) { var r = [], me = this; this.parent().children().filter(sel).each(function(){ if(!me.has(this)&&r.indexOf(this)<0) r.push(this) }); return new _$(r) },

nextAll : function(sel) { var c = this.siblings(sel), me = this, idx = -1, act = false, done = false, r = []; this.parent().children().each(function(){ if(done) return; if(!act) idx++, act = this==me[0]; else if(!c.has(this)) done = true; else r.push(this) }); return new _$(r) },

find : function(sel) { return new _$(sel,this[0]) },

filter : function(s,iv) { s = $('<div>').append(this.clone(true)).children(s); return new _$([].filter.call(this,function(n){ for(var i=0;i<s.length;i++) if(s[i]._originalNode==n) return !iv; return !!iv })) },

not : function(sel) { return this.filter(sel,true) },

eq : function(i) { return new _$(this[i]) },

has : function(el) { for(var i=0;i<this.length;i++) if(this[i]._originalNode==el||this[i]==el._originalNode||this[i]==el) return true; return false },

add : function(sel) { sel = _getEls(sel); var me = this, cu = []; for(var i=0;i<this.length;i++) cu.push(this[i]); var ta = cu.concat([].filter.call(sel,function(n){return cu.indexOf(n)==-1})); return ta.length==this.length?this:new _$(ta) },

attr : function(k,v) { if(v===undefined) return this[0]&&this[0].getAttribute(k); this.each(function(){this[((v===null)?'remove':'set')+'Attribute'](k,v)}); return this },

trigger : function(e,v) { this.each(function(){var evt = !$.browser.ie&&window.CustomEvent?new CustomEvent(e,{detail:v}):document.createEvent('CustomEvent');if($.browser.ie||!window.CustomEvent) evt.initCustomEvent(e, false, false, v);this.dispatchEvent(evt)}); return this },

on : function(e,f) { e=e.split(' '); this.each(function(){for(var x in e) this.addEventListener(e[x],f)}); return this },

off : function(e,f) { e=e.split(' '); this.each(function(){for(var x in e) this.removeEventListener(e[x],f)}); return this },

click : function(f) { if(f instanceof Function) this.on('click',f); else this.trigger('click'); return this },

text : function(t) { if(t===undefined) return this[0]&&this[0].textContent; this.each(function(){this.textContent=t}); return this },

html : function(h) { if(h===undefined) return this[0]&&this[0].innerHTML; this.each(function(){this.innerHTML=h}); return this },

hasClass : function(cl,h) { h=0;this.each(function(){h+=this.classList.contains(cl)&&1||0});return !!h },

addClass : function(cl) { cl=cl.split(' ');this.each(function(){for(var i in cl) if(cl[i]) this.classList.add(cl[i])});return this },

removeClass : function(cl) { cl=cl.split(' ');this.each(function(){for(var i in cl) if(cl[i]) this.classList.remove(cl[i])});return this },

toggleClass : function(cl) { cl=cl.split(' ');for(var x in cl) if(cl[x]) this[(this.hasClass(cl[x])?'remove':'add')+'Class'](cl[x]); return this },

setcss : function(v,p) { this.each(function(){this.style.setProperty(v,p)}); return this },

getcss : function(p) { return this[0]&&this[0].style.getPropertyValue(p); },

css : function(a,b) { if(typeof a == 'string') if(b===undefined) return this.getcss(a); else this.setcss(a,b);else for(var x in a) this.setcss(x,a[x]); return this },

hide : function() { this.setcss('display','none'); return this },

show : function() { this.setcss('display','block'); return this },

width : function() { return this[0]&&this[0].clientWidth },

height : function() { return this[0]&&this[0].clientHeight }

$.browser = new function(){

var ualc = navigator.userAgent.toLowerCase();

this.webkit = /applewebkit/.test(ualc);

this.firefox = /firefox/.test(ualc);

this.safari = /safari/.test(ualc) && !/chrome/.test(ualc);

this.ie = /msie/.test(ualc) || /trident/.test(ualc);

this.iemobile = /iemobile/.test(ualc);

this.iOS = /ipad|iphone|ipod/.test(ualc);

this.android = /android/.test(ualc);

this.mobile = this.iOS || this.android || this.iemobile;

this.unknown = !this.webkit&&!this.firefox&&!this.ie&&!this.iOS&&!this.android;

this.version = parseFloat(this.webkit?ualc.match(/applewebkit\/(\d+)\./)[1]

: this.firefox?ualc.match(/firefox\/(\d+)\./)[1]

: this.ie?ualc.match(/(msie\s|rv\:)(\d+)\./)[2]

: -1);

this.retina = (window.devicePixelRatio && window.devicePixelRatio >= 2) && this.iOS;