/*
 * jQuery BBQ: Back Button & Query Library - v1.2.1 - 2/17/2010
 * http://benalman.com/projects/jquery-bbq-plugin/
 * 
 * Copyright (c) 2010 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */
(function($,p){var i,m=Array.prototype.slice,r=decodeURIComponent,a=$.param,c,l,v,b=$.bbq=$.bbq||{},q,u,j,e=$.event.special,d="hashchange",A="querystring",D="fragment",y="elemUrlAttr",g="location",k="href",t="src",x=/^.*\?|#.*$/g,w=/^.*\#/,h,C={};function E(F){return typeof F==="string"}function B(G){var F=m.call(arguments,1);return function(){return G.apply(this,F.concat(m.call(arguments)))}}function n(F){return F.replace(/^[^#]*#?(.*)$/,"$1")}function o(F){return F.replace(/(?:^[^?#]*\?([^#]*).*$)?.*/,"$1")}function f(H,M,F,I,G){var O,L,K,N,J;if(I!==i){K=F.match(H?/^([^#]*)\#?(.*)$/:/^([^#?]*)\??([^#]*)(#?.*)/);J=K[3]||"";if(G===2&&E(I)){L=I.replace(H?w:x,"")}else{N=l(K[2]);I=E(I)?l[H?D:A](I):I;L=G===2?I:G===1?$.extend({},I,N):$.extend({},N,I);L=a(L);if(H){L=L.replace(h,r)}}O=K[1]+(H?"#":L||!K[1]?"?":"")+L+J}else{O=M(F!==i?F:p[g][k])}return O}a[A]=B(f,0,o);a[D]=c=B(f,1,n);c.noEscape=function(G){G=G||"";var F=$.map(G.split(""),encodeURIComponent);h=new RegExp(F.join("|"),"g")};c.noEscape(",/");$.deparam=l=function(I,F){var H={},G={"true":!0,"false":!1,"null":null};$.each(I.replace(/\+/g," ").split("&"),function(L,Q){var K=Q.split("="),P=r(K[0]),J,O=H,M=0,R=P.split("]["),N=R.length-1;if(/\[/.test(R[0])&&/\]$/.test(R[N])){R[N]=R[N].replace(/\]$/,"");R=R.shift().split("[").concat(R);N=R.length-1}else{N=0}if(K.length===2){J=r(K[1]);if(F){J=J&&!isNaN(J)?+J:J==="undefined"?i:G[J]!==i?G[J]:J}if(N){for(;M<=N;M++){P=R[M]===""?O.length:R[M];O=O[P]=M<N?O[P]||(R[M+1]&&isNaN(R[M+1])?{}:[]):J}}else{if($.isArray(H[P])){H[P].push(J)}else{if(H[P]!==i){H[P]=[H[P],J]}else{H[P]=J}}}}else{if(P){H[P]=F?i:""}}});return H};function z(H,F,G){if(F===i||typeof F==="boolean"){G=F;F=a[H?D:A]()}else{F=E(F)?F.replace(H?w:x,""):F}return l(F,G)}l[A]=B(z,0);l[D]=v=B(z,1);$[y]||($[y]=function(F){return $.extend(C,F)})({a:k,base:k,iframe:t,img:t,input:t,form:"action",link:k,script:t});j=$[y];function s(I,G,H,F){if(!E(H)&&typeof H!=="object"){F=H;H=G;G=i}return this.each(function(){var L=$(this),J=G||j()[(this.nodeName||"").toLowerCase()]||"",K=J&&L.attr(J)||"";L.attr(J,a[I](K,H,F))})}$.fn[A]=B(s,A);$.fn[D]=B(s,D);b.pushState=q=function(I,F){if(E(I)&&/^#/.test(I)&&F===i){F=2}var H=I!==i,G=c(p[g][k],H?I:{},H?F:2);p[g][k]=G+(/#/.test(G)?"":"#")};b.getState=u=function(F,G){return F===i||typeof F==="boolean"?v(F):v(G)[F]};b.removeState=function(F){var G={};if(F!==i){G=u();$.each($.isArray(F)?F:arguments,function(I,H){delete G[H]})}q(G,2)};e[d]=$.extend(e[d],{add:function(F){var H;function G(J){var I=J[D]=c();J.getState=function(K,L){return K===i||typeof K==="boolean"?l(I,K):l(I,L)[K]};H.apply(this,arguments)}if($.isFunction(F)){H=F;return G}else{H=F.handler;F.handler=G}}})})(jQuery,this);
/*
 * jQuery hashchange event - v1.2 - 2/11/2010
 * http://benalman.com/projects/jquery-hashchange-plugin/
 * 
 * Copyright (c) 2010 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */
(function($,i,b){var j,k=$.event.special,c="location",d="hashchange",l="href",f=$.browser,g=document.documentMode,h=f.msie&&(g===b||g<8),e="on"+d in i&&!h;function a(m){m=m||i[c][l];return m.replace(/^[^#]*#?(.*)$/,"$1")}$[d+"Delay"]=100;k[d]=$.extend(k[d],{setup:function(){if(e){return false}$(j.start)},teardown:function(){if(e){return false}$(j.stop)}});j=(function(){var m={},r,n,o,q;function p(){o=q=function(s){return s};if(h){n=$('<iframe src="javascript:0"/>').hide().insertAfter("body")[0].contentWindow;q=function(){return a(n.document[c][l])};o=function(u,s){if(u!==s){var t=n.document;t.open().close();t[c].hash="#"+u}};o(a())}}m.start=function(){if(r){return}var t=a();o||p();(function s(){var v=a(),u=q(t);if(v!==t){o(t=v,u);$(i).trigger(d)}else{if(u!==t){i[c][l]=i[c][l].replace(/#.*/,"")+"#"+u}}r=setTimeout(s,$[d+"Delay"])})()};m.stop=function(){if(!n){r&&clearTimeout(r);r=0}};return m})()})(jQuery,this);
/*

jQuery Browser Plugin
	* Version 2.3
	* 2008-09-17 19:27:05
	* URL: http://jquery.thewikies.com/browser
	* Description: jQuery Browser Plugin extends browser detection capabilities and can assign browser selectors to CSS classes.
	* Author: Nate Cavanaugh, Minhchau Dang, & Jonathan Neal
	* Copyright: Copyright (c) 2008 Jonathan Neal under dual MIT/GPL license.
	* JSLint: This javascript file passes JSLint verification.
*//*jslint
		bitwise: true,
		browser: true,
		eqeqeq: true,
		forin: true,
		nomen: true,
		plusplus: true,
		undef: true,
		white: true
*//*global
		jQuery
*/
(function($){$.browserTest=function(a,z){var u='unknown',x='X',m=function(r,h){for(var i=0;i<h.length;i=i+1){r=r.replace(h[i][0],h[i][1]);}return r;},c=function(i,a,b,c){var r={name:m((a.exec(i)||[u,u])[1],b)};r[r.name]=true;r.version=(c.exec(i)||[x,x,x,x])[3];if(r.name.match(/safari/)&&r.version>400){r.version='2.0';}if(r.name==='presto'){r.version=($.browser.version>9.27)?'futhark':'linear_b';}r.versionNumber=parseFloat(r.version,10)||0;r.versionX=(r.version!==x)?(r.version+'').substr(0,1):x;r.className=r.name+r.versionX;return r;};a=(a.match(/Opera|Navigator|Minefield|KHTML|Chrome/)?m(a,[[/(Firefox|MSIE|KHTML,\slike\sGecko|Konqueror)/,''],['Chrome Safari','Chrome'],['KHTML','Konqueror'],['Minefield','Firefox'],['Navigator','Netscape']]):a).toLowerCase();$.browser=$.extend((!z)?$.browser:{},c(a,/(camino|chrome|firefox|netscape|konqueror|lynx|msie|opera|safari)/,[],/(camino|chrome|firefox|netscape|netscape6|opera|version|konqueror|lynx|msie|safari)(\/|\s)([a-z0-9\.\+]*?)(\;|dev|rel|\s|$)/));$.layout=c(a,/(gecko|konqueror|msie|opera|webkit)/,[['konqueror','khtml'],['msie','trident'],['opera','presto']],/(applewebkit|rv|konqueror|msie)(\:|\/|\s)([a-z0-9\.]*?)(\;|\)|\s)/);$.os={name:(/(win|mac|linux|sunos|solaris|iphone)/.exec(navigator.platform.toLowerCase())||[u])[0].replace('sunos','solaris')};if(!z){$('html').addClass([$.os.name,$.browser.name,$.browser.className,$.layout.name,$.layout.className].join(' '));}};$.browserTest(navigator.userAgent);})(jQuery);
/*
 * Edited by Kanichat.
 * Dual licensed under the MIT and GPL licenses
 */

/**
 * Cookie plugin
 *
 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */

/**
 * Create a cookie with the given name and value and other optional parameters.
 *
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Set the value of a cookie.
 * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
 * @desc Create a cookie with all available options.
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Create a session cookie.
 * @example $.cookie('the_cookie', null);
 * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
 *       used when the cookie was set.
 *
 * @param String name The name of the cookie.
 * @param String value The value of the cookie.
 * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
 * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
 *                             If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
 *                             If set to null or omitted, the cookie will be a session cookie and will not be retained
 *                             when the the browser exits.
 * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
 * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
 * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
 *                        require a secure protocol (like HTTPS).
 * @type undefined
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */

/**
 * Get the value of a cookie with the given name.
 *
 * @example $.cookie('the_cookie');
 * @desc Get the value of a cookie.
 *
 * @param String name The name of the cookie.
 * @return The value of the cookie.
 * @type String
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */
jQuery.cookie = function(name, value, options) {
		if (typeof value != 'undefined') { // name and value given, set cookie
				options = options || {};
				if (value === null) {
						value = '';
						options.expires = -1;
				}
				var expires = '';
				if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
						var date;
						if (typeof options.expires == 'number') {
								date = new Date();
								date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
						} else {
								date = options.expires;
						}
						expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
				}
				// CAUTION: Needed to parenthesize options.path and options.domain
				// in the following expressions, otherwise they evaluate to undefined
				// in the packed version for some reason...
				var path = options.path ? '; path=' + (options.path) : '';
				var domain = options.domain ? '; domain=' + (options.domain) : '';
				var secure = options.secure ? '; secure' : '';
				document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
		} else { // only name given, get cookie
				var cookieValue = null;
				if (document.cookie && document.cookie != '') {
						var cookies = document.cookie.split(';');
						for (var i = 0; i < cookies.length; i++) {
								var cookie = jQuery.trim(cookies[i]);
								// Does this cookie string begin with the name we want?
								if (cookie.substring(0, name.length + 1) == (name + '=')) {
									/*
									 * edited 2010/07/08 by Kanichat
									 * old: cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
									 */
									try{
											cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
									}catch(e){}
										break;
								}
						}
				}
				return cookieValue;
		}
};
/**
 * CookieUtil plugin
 *
 * Copyright (c) 2011 Kanapps
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * This plugin includes source code of Cookie Plugin.
 * (Copyright (c) 2006 Klaus Hartl (stilbuero.de) MIT and GPL Licenses)
 *
 */

jQuery.cookieUtil = {
	removeAll: function(prefix){
		if (document.cookie && document.cookie != '') {
			var cookies = document.cookie.split(';');
			for (var i = 0; i < cookies.length; i++) {
					var cookie = jQuery.trim(cookies[i]);

					var data = cookie.split("=",2);
					if(data.length == 2){
						var name = data[0];
						try{
							if(name.substring(0, prefix.length) == prefix){
								jQuery.cookie(name, null);
							}
						}catch(e){}
						//var value = decodeURIComponent(data[1]);
					}
			}
		}
	}
};
(function($){
	/**
	 * $.cookieform(type,options)
	 * @param	type(省略可):	"auto" 自動リストア、自動保存(既定)
	 * 			options	prefix	Cookieの接頭語。指定なしでcf_
	 */
	$.fn.cookieform = function(type, options){
		if(type && typeof type != "string"){
			options = type;
			type = "auto";
		}
		if(!type){
			type = "auto";
		}

		options = options ? options : {};
		var all = this;
		var cookieOption = {};
		function each(func){
			all.filter(":text, :checkbox, :radio, select, textarea, :password").each(function(){
				func(this);
			});
		};


		if(type == "auto"){
			//自動保存、自動リストア
			restore();
			setEvent();
		}

		function setEvent(){
			each(function(obj){
				$(obj).change(function(){
					var cookieName = createCookieName(obj);
					if(cookieName){
						if($(obj).is(":checkbox")){
							$.cookie(cookieName, obj.checked ? "true" : "false", cookieOption);
						}else{
							$.cookie(cookieName, $(obj).val(), cookieOption);
						}
					}
				});
			});
		}

		function restore(){
			each(function(obj){
				try{
					var cookieName = createCookieName(obj);
					if(cookieName){
						if($(obj).is(":checkbox")){
							var data = $.cookie(cookieName);
							if(!data){

							}else if(data == "true"){
								obj.checked = true;
							}else if(data == "false"){
								obj.checked = false;
							}
						}else if($(obj).is("select")){
							var oldValue = $(obj).val();
							var cookieValue = $.cookie(cookieName);
							if(cookieValue){
								$(obj).val(cookieValue);
								var newValue = $(obj).val();
								if(cookieValue != newValue){
									$(obj).val(oldValue);
								}
							}
						}else if($(obj).is(":radio")){
							var cookieValue = $.cookie(cookieName);
							if(cookieValue){
								var name = $(obj).get(0).name;
								//alert(name+","+cookieValue)
								if(name){
									//obj.val([cookieValue]);
									$("input:radio[name="+name+"]").val([cookieValue]);
								}
							}
						}else{
							//alert($(obj).val());
							var cookieValue = $.cookie(cookieName);
							if(cookieValue){
								$(obj).val(cookieValue);
							}
						}
					}
				}catch (e) {
				}
			});
		}

		function createCookieName(obj){
			var prefix = options.prefix ? options.prefix : "cf_";
			if($(obj).is(":text, :checkbox, textarea, select, :password")){
				if(obj.id){
					return prefix+""+obj.id;
				}else if(obj.name){
					return prefix+""+obj.name;
				}else{
					null;
				}
			}else{
				return obj.name ? prefix+""+obj.name : null;
			}
		}
	};
})(jQuery);
/*
--------------------------------------------------------
dateformat.js - Simple date formatter
Version 1.1 (Update 2008/04/02)

Copyright (c) 2007-2008 onozaty (http://www.enjoyxstudy.com)

Released under an MIT-style license.

For details, see the web site:
 http://www.enjoyxstudy.com/javascript/dateformat/

--------------------------------------------------------
patterns
y : Year         ex. "yyyy" -> "2007", "yy" -> "07"
M : Month        ex. "MM" -> "05" "12", "M" -> "5" "12"
d : Day          ex. "dd" -> "09" "30", "d" -> "9" "30"
H : Hour (0-23)  ex. "HH" -> "00" "23", "H" -> "0" "23"
m : Minute       ex. "mm" -> "01" "59", "m" -> "1" "59"
s : Second       ex. "ss" -> "00" "59", "H" -> "0" "59"
S : Millisecond  ex. "SSS" -> "000" "012" "999", 
                     "SS" -> "00" "12" "999", "S" -> "0" "12" "999"

Text can be quoted using single quotes (') to avoid interpretation.
"''" represents a single quote. 


Useing..

 var fmt = new DateFormat("yyyy/MM/dd HH:mm:ss SSS");

 var str = fmt.format(new Date()); // "2007/05/10 12:21:19 002"
 var date = fmt.parse("2007/05/10 12:21:19 002"); // return Date object

--------------------------------------------------------
*/

var DateFormat = function(pattern) {
  this._init(pattern);
};

DateFormat.prototype = {
  _init: function(pattern) {

    this.pattern = pattern;
    this._patterns = [];

    for (var i = 0; i < pattern.length; i++) {
      var ch = pattern.charAt(i);
      if (this._patterns.length == 0) {
        this._patterns[0] = ch;
      } else {
        var index = this._patterns.length - 1;
        if (this._patterns[index].charAt(0) == "'") {
          if (this._patterns[index].length == 1 
             || this._patterns[index].charAt(this._patterns[index].length - 1) != "'") {
            this._patterns[index] += ch;
          } else {
            this._patterns[index + 1] = ch;
          }
        } else if (this._patterns[index].charAt(0) == ch) {
          this._patterns[index] += ch;
        } else {
          this._patterns[index + 1] = ch;
        }
      }
    }
  },

  format: function(date) {

    var result = [];
    for (var i = 0; i < this._patterns.length; i++) {
      result[i] = this._formatWord(date, this._patterns[i]);
    }
    return result.join('');
  },
  _formatWord: function(date, pattern) {

    var formatter = this._formatter[pattern.charAt(0)];
    if (formatter) {
      return formatter.apply(this, [date, pattern]);
    } else {
      return pattern;
    }
  },
  _formatter: {
    "y": function(date, pattern) {
      // Year
      var year = String(date.getFullYear());
      if (pattern.length <= 2) {
        year = year.substring(2, 4);
      } else {
        year = this._zeroPadding(year, pattern.length);
      }
      return year;
    },
    "M": function(date, pattern) {
      // Month in year
      return this._zeroPadding(String(date.getMonth() + 1), pattern.length);
    },
    "d": function(date, pattern) {
      // Day in month
      return this._zeroPadding(String(date.getDate()), pattern.length);
    },
    "H": function(date, pattern) {
      // Hour in day (0-23)
      return this._zeroPadding(String(date.getHours()), pattern.length);
    },
    "m": function(date, pattern) {
      // Minute in hour
      return this._zeroPadding(String(date.getMinutes()), pattern.length);
    },
    "s": function(date, pattern) {
      // Second in minute
      return this._zeroPadding(String(date.getSeconds()), pattern.length);
    },
    "S": function(date, pattern) {
      // Millisecond
      return this._zeroPadding(String(date.getMilliseconds()), pattern.length);
    },
    "'": function(date, pattern) {
      // escape
      if (pattern == "''") {
        return "'";
      } else {
        return pattern.replace(/'/g, '');
      }
    }
  },

  _zeroPadding: function(str, length) {
    if (str.length >= length) {
      return str;
    }

    return new Array(length - str.length + 1).join("0") + str;
  },


  /// Parser ///
  parse: function(text) {

    if (typeof text != 'string' || text == '') return null;

    var result = {year: 1970, month: 1, day: 1, hour: 0, min: 0, sec: 0, msec: 0};

    for (var i = 0; i < this._patterns.length; i++) {
       if (text == '') return null; // parse error!!
       text = this._parseWord(text, this._patterns[i], result);
       if (text === null) return null; // parse error!!
    }
    if (text != '') return null; // parse error!!

    return new Date(
                result.year,
                result.month - 1,
                result.day,
                result.hour,
                result.min,
                result.sec,
                result.msec);
  },
  _parseWord: function(text, pattern, result) {

    var parser = this._parser[pattern.charAt(0)];
    if (parser) {
      return parser.apply(this, [text, pattern, result]);
    } else {
      if (text.indexOf(pattern) != 0) {
        return null;
      } else {
        return text.substring(pattern.length);
      }
    }
  },
  _parser: {
    "y": function(text, pattern, result) {
      // Year
      var year;
      if (pattern.length <= 2) {
        year = text.substring(0, 2);
        year = year < 70 ? '20' + year : '19' + year;
        text = text.substring(2);
      } else {
        var length = (pattern.length == 3) ? 4 : pattern.length;
        year = text.substring(0, length);
        text = text.substring(length);
      }
      if (!this._isNumber(year)) return null; // error
      result.year = parseInt(year, 10);
      return text;
    },
    "M": function(text, pattern, result) {
      // Month in year
      var month;
      if (pattern.length == 1 && text.length > 1
          && text.substring(0, 2).match(/1[0-2]/) != null) {
        month = text.substring(0, 2);
        text  = text.substring(2);
      } else {
        month = text.substring(0, pattern.length);
        text  = text.substring(pattern.length);
      }
      if (!this._isNumber(month)) return null; // error
      result.month = parseInt(month, 10);
      return text;
    },
    "d": function(text, pattern, result) {
      // Day in month
      var day;
      if (pattern.length == 1 && text.length > 1 
          && text.substring(0, 2).match(/1[0-9]|2[0-9]|3[0-1]/) != null) {
        day  = text.substring(0, 2);
        text = text.substring(2);
      } else {
        day  = text.substring(0, pattern.length);
        text = text.substring(pattern.length);
      }
      if (!this._isNumber(day)) return null; // error
      result.day = parseInt(day, 10);
      return text;
    },
    "H": function(text, pattern, result) {
      // Hour in day (0-23)
      var hour;
      if (pattern.length == 1 && text.length > 1
          && text.substring(0, 2).match(/1[0-9]|2[0-3]/) != null) {
        hour = text.substring(0, 2);
        text = text.substring(2);
      } else {
        hour = text.substring(0, pattern.length);
        text = text.substring(pattern.length);
      }
      if (!this._isNumber(hour)) return null; // error
      result.hour = parseInt(hour, 10);
      return text;
    },
    "m": function(text, pattern, result) {
      // Minute in hour
      var min;
      if (pattern.length == 1 && text.length > 1
          && text.substring(0, 2).match(/[1-5][0-9]/) != null) {
        min  = text.substring(0, 2);
        text = text.substring(2);
      } else {
        min  = text.substring(0, pattern.length);
        text = text.substring(pattern.length);
      }
      if (!this._isNumber(min)) return null; // error
      result.min = parseInt(min, 10);
      return text;
    },
    "s": function(text, pattern, result) {
      // Second in minute
      var sec;
      if (pattern.length == 1 && text.length > 1
          && text.substring(0, 2).match(/[1-5][0-9]/) != null) {
        sec  = text.substring(0, 2);
        text = text.substring(2);
      } else {
        sec  = text.substring(0, pattern.length);
        text = text.substring(pattern.length);
      }
      if (!this._isNumber(sec)) return null; // error
      result.sec = parseInt(sec, 10);
      return text;
    },
    "S": function(text, pattern, result) {
      // Millimsecond
      var msec;
      if (pattern.length == 1 || pattern.length == 2) {
        if (text.length > 2 && text.substring(0, 3).match(/[1-9][0-9][0-9]/) != null) {
          msec = text.substring(0, 3);
          text = text.substring(3);
        } else if (text.length > 1 && text.substring(0, 2).match(/[1-9][0-9]/) != null) {
          msec = text.substring(0, 2);
          text = text.substring(2);
        } else {
          msec = text.substring(0, pattern.length);
          text = text.substring(pattern.length);
        }
      } else {
        msec = text.substring(0, pattern.length);
        text = text.substring(pattern.length);
      }
      if (!this._isNumber(msec)) return null; // error
      result.msec = parseInt(msec, 10);
      return text;
    },
    "'": function(text, pattern, result) {
      // escape
      if (pattern == "''") {
        pattern = "'";
      } else {
        pattern = pattern.replace(/'/g, '');
      }
      if (text.indexOf(pattern) != 0) {
        return null; // error
      } else {
        return text.substring(pattern.length);
      }
    }
  },

  _isNumber: function(str) {
    return /^[0-9]*$/.test(str);
  }
}