Need to format date without year

We need users to be able to enter any combination of a date in a field, the results will be Long Month Name and Day. Can't seem to make this happen.

For example, a user types any combination in a field of

Aug 5, 2010 or 8/5/2010 or 8-1-2010 or 8-1 or 8/1

it should return the following

August 5

Any ideas? I used the formate date function without the year and it works if the user includes the year in the input data field. If they don't include a year, like Aug 5 or 8-5 or 8/5, then it errors because this function needs the year and then it displays properly.

We need it to just diplay August 5.

return FormatDate(Field("date"), "lm d");

This will work for 8/5/2010 or 8-1-2010, not the other ones though.

Try this:

var s = Field("date");
var date;
try
{
   date = DateFromString(s);
}
catch (e)
{
   date = DateFromString(s + "/" + GetYear(Today()));
}
return FormatDate(date, "lm d");