/*
 * jQuery Calculation Plug-in
 *
 * Copyright (c) 2011 Dan G. Switzer, II
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * Revision: 13
 * Version: 0.4.09
 *
*/
(function($){var defaults={reNumbers:/(-?\$?)(\d+(,\d{3})*(\.\d{1,})?|\.\d{1,})/g,cleanseNumber:function(v){return v.replace(/[^0-9.\-]/g,"")},useFieldPlugin:(!!$.fn.getValue),onParseError:null,onParseClear:null};$.Calculation={version:"0.4.09",setDefaults:function(options){$.extend(defaults,options)}};$.fn.parseNumber=function(options){var aValues=[];options=$.extend(options,defaults);this.each(function(){var $el=$(this),sMethod=($el.is(":input")?(defaults.useFieldPlugin?"getValue":"val"):"text"),v=$.trim($el[sMethod]()).match(defaults.reNumbers,"");if(v==null){v=0;if(jQuery.isFunction(options.onParseError))options.onParseError.apply($el,[sMethod]);$.data($el[0],"calcParseError",true)}else{v=options.cleanseNumber.apply(this,[v[0]]);if($.data($el[0],"calcParseError")&&jQuery.isFunction(options.onParseClear)){options.onParseClear.apply($el,[sMethod]);$.data($el[0],"calcParseError",false)}}aValues.push(parseFloat(v,10))});return aValues};$.fn.calc=function(expr,vars,cbFormat,cbDone){var $this=this,exprValue="",precision=0,$el,parsedVars={},tmp,sMethod,_,bIsError=false;for(var k in vars){expr=expr.replace((new RegExp("("+k+")","g")),"_.$1");if(!!vars[k]&&!!vars[k].jquery){parsedVars[k]=vars[k].parseNumber()}else{parsedVars[k]=vars[k]}}this.each(function(i,el){var p,len;$el=$(this);sMethod=($el.is(":input")?(defaults.useFieldPlugin?"setValue":"val"):"text");_={};for(var k in parsedVars){if(typeof parsedVars[k]=="number"){_[k]=parsedVars[k]}else if(typeof parsedVars[k]=="string"){_[k]=parseFloat(parsedVars[k],10)}else if(!!parsedVars[k]&&(parsedVars[k]instanceof Array)){tmp=(parsedVars[k].length==$this.length)?i:0;_[k]=parsedVars[k][tmp]}if(isNaN(_[k]))_[k]=0;p=_[k].toString().match(/\.\d+$/gi);len=(p)?p[0].length-1:0;if(len>precision)precision=len}try{exprValue=eval(expr);if(precision)exprValue=Number(exprValue.toFixed(Math.max(precision,4)));if(jQuery.isFunction(cbFormat)){var tmp=cbFormat.apply(this,[exprValue]);if(!!tmp)exprValue=tmp}}catch(e){exprValue=e;bIsError=true}$el[sMethod](exprValue.toString())});if(jQuery.isFunction(cbDone))cbDone.apply(this,[this]);return this};$.each(["sum","avg","min","max"],function(i,method){$.fn[method]=function(bind,selector){if(arguments.length==0)return math[method](this.parseNumber());var bSelOpt=selector&&(selector.constructor==Object)&&!(selector instanceof jQuery);var opt=bind&&bind.constructor==Object?bind:{bind:bind||"keyup",selector:(!bSelOpt)?selector:null,oncalc:null};if(bSelOpt)opt=jQuery.extend(opt,selector);if(!!opt.selector)opt.selector=$(opt.selector);var self=this,sMethod,doCalc=function(){var value=math[method](self.parseNumber(opt));if(!!opt.selector){sMethod=(opt.selector.is(":input")?(defaults.useFieldPlugin?"setValue":"val"):"text");opt.selector[sMethod](value.toString())}if(jQuery.isFunction(opt.oncalc))opt.oncalc.apply(self,[value,opt])};doCalc();return self.bind(opt.bind,doCalc)}});var math={sum:function(a){var total=0,precision=0;$.each(a,function(i,v){var p=v.toString().match(/\.\d+$/gi),len=(p)?p[0].length-1:0;if(len>precision)precision=len;total+=v});if(precision)total=Number(total.toFixed(precision));return total},avg:function(a){return math.sum(a)/a.length},min:function(a){return Math.min.apply(Math,a)},max:function(a){return Math.max.apply(Math,a)}}})(jQuery);