Definition of PDF template position

Question

I have a PDF form, where templates can be deleted and added via buttons. The PDF form consists of 2 categories, template category 2 and template category 3. How can it be done that template category 2 is only added at the last page of category 2 and template category 3 only added at the last page of category 3? Can the position of an PDF template be clearly defnined?
I would would be grateful for any kind of information!

Answer 1

In the examples the templates are being placed after the last page. But instead of using a page number the number of pages property was used. The parameters are passed to a method by fixed positions unless you use a special notation to allow the use of parameter names.
Example 1:
var a = this.templates;
for (i = 0; i < a.length; i++) 
a[i].spawn(this.numPages, false, false);
Can also be written as:
var a = this.templates;
for (i = 0; i < a.length; i++) 
a[i].spawn({nPage: this.numPages, bRename: false, bOverlay: false});
"this.numPages" is a number and it is the number of pages in the PDF at the time the line of the script is executed. So if one has one page in the form and one hidden template the first time the script is run, the value will be 1, if run another time the number will be 2. You need to remove that string of text and insert the number or a variable that has the number you want to use.
var a = this.templates;
var nPage = this.numPages; // variable for zero based page number;
for (i = 0; i < a.length; i++) 
nPage = this.numPages; // update the page number for the loop processing;
a[i].spawn(nPage, false, false);
For Acrobat JavaScript there is no "calculateNow" statement. It does not even to appear to be available to JavaScript.