货币价值的JavaScript？

Question

我有这个功能来格式化货币价值：

function formatMonetary(v){   
   v = v.replace(/\D/g,"");
   v = v.replace(/(\d{1})(\d{15})$/,"$1.$2");
   v = v.replace(/(\d{1})(\d{11})$/,"$1.$2");
   v = v.replace(/(\d{1})(\d{8})$/,"$1.$2");
   v = v.replace(/(\d{1})(\d{5})$/,"$1.$2");
   v = v.replace(/(\d{1})(\d{1,2})$/,"$1,$2");
   return v;   
}

当我输入一个数字1或1,1时，此函数会假设值：

0,01

0,11

如果以正确的方式进行值对齐，当我输入数字1或1,1时，此函数可能会采用左侧的值：

1,00

1,10