Agregar puntos a un campo dinamico.

[arawako]

Con esta función puedes dar formato a los números:

function numberFormat(number, decimals, thousands_sep, decimal_sep) {
// var_number.number_format([decimals ,thousand separator,decimal separator]);
// var number: number to format
// decimals: how many decimal numbers (default value 0);
// thousand separator: char that define the thousandecimal_sep (default value ,);
// decimal separator: char the defines the decimals (default value .);

if(isNaN(number)) return undefined;
if(decimals < 0) return undefined;
if(decimals == undefined) decimals = 0;
if(thousands_sep == undefined) thousands_sep = ',';
if(decimal_sep == undefined) decimal_sep = '.';

var returned = number.toString().split('.'), str_begin, str_after, temp_str = "", i;

if(returned.length == 1) {
str_begin = returned[0]
str_after = '';
} else if(returned.length == 2) {
str_begin = returned[0];
str_after = returned[1];
str_after = str_after.substr(0, 2);
} else {
trace("uncaught number format");
}

// thousands seperator
if(str_begin.length > 3) {
for(i = 0; i < str_begin.length; i++) {
if(((str_begin.length - i) % 3) == 0 && i != str_begin.length - 1) {
temp_str = temp_str + thousands_sep + str_begin.charAt(i);
} else {
temp_str = temp_str + str_begin.charAt(i);
}
}
} else {
temp_str = str_begin;
}

// ----------------------
// decimals
// if decimals==0 return
// ----------------------
if(decimals > 0) {
str_after = str_after.substr(0, decimals);

if(str_after.length < decimals) {
while(str_after.length < decimals) {
str_after += '0';
}
}
}

if(decimals > 0) {
return temp_str + decimal_sep + str_after;
} else {
return temp_str;
}
}