How to check in script include if the user is using a mobile browser to view ServiceNow

[siakam]

I am currently working on allowing our users to access SN on mobile devices. When a user is accessing our SN instances from a mobile browser, we only want them to see the Service Portal. There are 2 ways that I'm thinking of doing this:

1. Create a script include that returns true if the user is on a mobile browser.
2. Check the transaction log table for the useragent

The problem with 1 is that I havent found any method that allows me to get the browser data correctly.
The problem with 2 is that the transaction log table isnt updated when the user is on the Service Portal.

I wanted to know if there was any way in a script include to determine what browser is currently in use?

Or

Is possible to get the transaction log table to log browser information when a user is on the Service Portal?

Or

Is there some other way of doing this that I havent found yet?

If its not possible, i

[Michael Ritchie]

Have you tested it?  I created a simple business rule that executes this code upon the creation of an incident:

if (gs.isMobile())
  gs.info("submitted from mobile UI");
 else 
   gs.info("NOT submitted from mobile UI");

I logged in via Safari on my Mobile to the Service Portal and created an incident and the "submitted from mobile UI" was logged.  When using desktop browser "Not" was logged.

[siakam · Accepted solution]

I have found out from ServiceNow that gs.IsMobile does not run on Menu Item in Service Portal. I will have to use CSS to hide a link on my navigation menu. Thank you for everyones help.