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By: sandra81

In the bookstore example there is :
<!--- To force an reload event.
       This is necessary because we have no given table and needs and reload
event to refetch the values of the select boxes!
Is first parameter here because we do not have a tablename. In this special
case the hidden input field customEvent is not rendered! -->

<input type="hidden" name="customEvent" value="re_0_0"/>

Could you explain me "Is first parameter here because we do not have a 
tablename.".
I have tablename in my dbform. So can I use
org.dbforms.util.ParseUtil.getParameter(request, "books", "-1")?
In addition, I don't understand what is the event in input tag. What is its use?

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