Regex and jQuery, validate input field

I have an开发者_Python百科 input field that only can be number and 2 decimals like 23,50. The decimal point have to be an comma , .It has to be exact to decimals even if thay are zeros. I use ths pattern in asp and it seems to be ok, but how can I use it in jquery?

^\d{1,9}(\,\d{2})$

See here:

jQuery validate: How to add a rule for regular expression validation?