How to avoid multiple Page Load event on the pages with History Points?

Question

Hello,

I have page with UpdatePanel, ListView, ScriptManager and Navigate event.
It shows a list of companies depending on the country selected.
I've added HistoryPoint with the selected country.
When I try to load this page with history point in new browser window (i.e. country/browse.aspx#&&location=1) Page Load event fires before Navigate event and loads the list of the companies with default country, then fires Navigate event and loads the companies with selected country. As result my page jumping from default country to selected.
Is there any way to avoid multiple Page Load event and run Navigate if page have history point?

Thanks in advance,
Natalie