Thanks for your response...
In scripting Guide CS3 in page 14 this is the program i am checking write now
var myDocument = app.documents.add();
pageHeight = "800pt";
pageWidth = "600pt";
pageOrientation = PageOrientation.landscape;
pagesPerDocument = 16;
After that i go to Scripting Reference CS2 for refer all document preferences in that "allowPagesShuffle and "facingPages" that i seen.
Then i used shuffle and facing pages what i mentioned in the 1st question.
Please show one small demo for my 10 pages active document.