(function($){$.GrowingInput=function(element,options){var value,lastValue,calc;options=$.extend({min:0,max:null,startWidth:15,correction:15},options);element=$(element).data('growing',this);var self=this;var init=function(){calc=$('<span></span>').css({'float':'left','display':'inline-block','position':'absolute','left':-1000}).insertAfter(element);$.each(['font-size','font-family','padding-left','padding-top','padding-bottom','padding-right','border-left','border-right','border-top','border-bottom','word-spacing','letter-spacing','text-indent','text-transform'],function(i,p){calc.css(p,element.css(p));});element.blur(resize).keyup(resize).keydown(resize).keypress(resize);resize();};var calculate=function(chars){calc.text(chars);var width=calc.width();return(width?width:options.startWidth)+options.correction;};var resize=function(){lastValue=value;value=element.val();var retValue=value;if(chk(options.min)&&value.length<options.min){if(chk(lastValue)&&(lastValue.length<=options.min))return;retValue=str_pad(value,options.min,'-');}else if(chk(options.max)&&value.length>options.max){if(chk(lastValue)&&(lastValue.length>=options.max))return;retValue=value.substr(0,options.max);}
element.width(calculate(retValue));return self;};this.resize=resize;init();};var chk=function(v){return!!(v||v===0);};var str_repeat=function(str,times){return new Array(times+1).join(str);};var str_pad=function(self,length,str,dir){if(self.length>=length)return this;str=str||' ';var pad=str_repeat(str,length-self.length).substr(0,length-self.length);if(!dir||dir=='right')return self+pad;if(dir=='left')return pad+self;return pad.substr(0,(pad.length/2).floor())+self+pad.substr(0,(pad.length/2).ceil());};})(jQuery);