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e?t:"([^/?]+)"}).replace(A,"([^?]*?)");return new RegExp("^"+t+"(?:\\?([\\s\\S]*))?$")},_extractParameters:function(t,e){var r=t.exec(e).slice(1);return i.map(r,function(t,e){if(e===r.length-1)return t||null;return t?decodeURIComponent(t):null})}});var N=e.History=function(){this.handlers=[];i.bindAll(this,"checkUrl");if(typeof window!=="undefined"){this.location=window.location;this.history=window.history}};var R=/^[#\/]|\s+$/g;var O=/^\/+|\/+$/g;var P=/msie [\w.]+/;var C=/\/$/;var j=/#.*$/;N.started=false;i.extend(N.prototype,u,{interval:50,atRoot:function(){return this.location.pathname.replace(/[^\/]$/,"$&/")===this.root},getHash:function(t){var e=(t||this).location.href.match(/#(.*)$/);return e?e[1]:""},getFragment:function(t,e){if(t==null){if(this._hasPushState||!this._wantsHashChange||e){t=decodeURI(this.location.pathname+this.location.search);var i=this.root.replace(C,"");if(!t.indexOf(i))t=t.slice(i.length)}else{t=this.getHash()}}return t.replace(R,"")},start:function(t){if(N.started)throw new Error("Backbone.history has already been started");N.started=true;this.options=i.extend({root:"/"},this.options,t);this.root=this.options.root;this._wantsHashChange=this.options.hashChange!==false;this._wantsPushState=!!this.options.pushState;this._hasPushState=!!(this.options.pushState&&this.history&&this.history.pushState);var r=this.getFragment();var s=document.documentMode;var n=P.exec(navigator.userAgent.toLowerCase())&&(!s||s<=7);this.root=("/"+this.root+"/").replace(O,"/");if(n&&this._wantsHashChange){var a=e.$('