`var expression=/[0-9]{4}\s[0-9]{4}\s[0-9]{2}\s[0-9]{10}/;`

This is the expression iam using for validating a account number. it is working very well. but i need to validate it by - instead of space. how can i do it?

```
eg: XXXX-XXXX-XX-XXXXXXXXXX (4+4+2+10)
```

Thanks.