Reply To: Different justification in odd and even pages

Amin, why don’t you use the “Away From Spine” Alignment under the “Indents and Spacing” pane of the Paragraph Style Options dialog box.

This alignment works fine, even if your para is running on 2 pages. It’s a simple thing and available in InDesign without extra penny.

I hope you don’t need a script for this, If I understood your request correctly.

Just give it a try…