javascript in asp.net and i frame redirect url,open popup

ClientScript.RegisterStartupScript(this.GetType(), "scriptid", "window.location.href='../sessexp.aspx'", true);

Page.RegisterStartupScript("openpopup", "");

center align table

table#table1 {text-align:center; margin-left:auto; margin-right:auto;}

Make session Alive using javascript

http://www.codeproject.com/KB/session/Reconnect.aspx

Expand & collapse div in Javascript