[Javascript] Best Practices

[Triche Osborne]

I'm building an adaptable form for a scheduling application in which the 
answer from a 3-5 button radio group determines whether or not the JS 
generates a variable number of extra sets of compound date/time fields.
	To do this, I can either hide a single invisible template, then clone 
the template, change the field names and show the resulting fields, or I 
can generate the extra sets "from scratch."
	Is either method preferred? *

Triche Osborne

*Note: If it is material to the answer, the hidden field poses no 
processing problems on the server side, nor does it require extra s-s 
programming to ignore it. The remainder of the form consists of a single 
text input, a textarea, the radio group and one compound date-time 
field, so the hidden field is virtually immaterial to load time.