We're pleased to have you here with us , but there are a few rules that need to be followed, and one is that proper names are required. Please take a look at the JavaRanch Naming Policyand adjust your display name to match it.
In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.
Considering that you have all the data required already on the form you can do client side validation.
E.g. the following script verifies that there is atleast one element selected before going to fetch data for that object
Hope that helps.