Go back in javascript
By Anatoly Mironov
Add link for “Go Back” in javascript (inspired by Webmasters tips):
<a href="javascript:location.href=document.referrer;">Back</a>
```If you have access to the code behind you can [do the same](http://www.beansoftware.com/ASP.NET-FAQ/Referrer-URL.aspx) with:
Request.UrlReferrer.ToString()
```If you want to go to site collection root, it is simple, too: <SharePoint:SPLinkButton runat="server" NavigateUrl="<% $SPUrl:~SiteCollection/%>">Start</SharePoint:SPLinkButton>