Hide parameters from URL

Hello,

I am calling page2.aspx from page1.aspx and I pass to Page2.aspx 2 parameters. I would like to hide those parameters from the user
I mean instead of http://MySite.com/page2.aspx?Param1=0&Param2=1
I would like to get http://MySite.com/page2.aspx and also send those 2 parameters to page2.aspx

Thanx