(function($){
$.fn.money=function(options){
var defaults={
prefix:'R$ ',
centsSeparator:',',
thousandsSeparator:'.',
limit:false,
centsLimit:2
};
var options=$.extend(defaults,options);
return this.each(function(){
var obj=$(this);
var is_number=/[0-9]/;
var prefix=options.prefix;
var centsSeparator=options.centsSeparator;
var thousandsSeparator=options.thousandsSeparator;
var limit=options.limit;
var centsLimit=options.centsLimit;
function to_numbers(str){
var formatted='';
for(var i=0;i<(str.length);i++){
char=str.charAt(i);
if(formatted.length==0 && char==0)char=false;
if(char && char.match(is_number)){
if(limit){
if(formatted.length < limit)formatted=formatted+char;
}else{
formatted=formatted+char;
}
}
}
return formatted;
}
function fill_with_zeroes(str){
while(str.length<(centsLimit+1))str='0'+str;
return str;
}
function price_format(str){
var formatted=fill_with_zeroes(to_numbers(str));
var thousandsFormatted='';
var thousandsCount=0;
var centsVal=formatted.substr(formatted.length-centsLimit,centsLimit);
var integerVal=formatted.substr(0,formatted.length-centsLimit);
formatted=integerVal+centsSeparator+centsVal;
if(thousandsSeparator){
for(var j=integerVal.length;j>0;j--){
char=integerVal.substr(j-1,1);
thousandsCount++;
if(thousandsCount%3==0)char=thousandsSeparator+char;
thousandsFormatted=char+thousandsFormatted;
}
if(thousandsFormatted.substr(0,1)==thousandsSeparator)thousandsFormatted=thousandsFormatted.substring(1,thousandsFormatted.length);
formatted=thousandsFormatted+centsSeparator+centsVal;
}
if(prefix)formatted=prefix+formatted;
return formatted;
}
function key_check(e){
var code=(e.keyCode ? e.keyCode:e.which);
var typed=String.fromCharCode(code);
var functional=false;
var str=obj.val();
var newValue=price_format(str+typed);
if(code >=96 && code <=105)functional=true;
if(code==8)functional=true;
if(code==9)functional=true;
if(code==13)functional=true;
if(code==37)functional=true;
if(code==39)functional=true;
if(!functional){
e.preventDefault();
e.stopPropagation();
if(str!=newValue)obj.val(newValue);
}
}
function price_it(){
var str=obj.val();
var price=price_format(str);
if(str !=price)obj.val(price);
}
$(this).bind('keydown',key_check);
$(this).bind('keyup',price_it);
if($(this).val().length>0)price_it();
});
};
})(jQuery);