How to check if Microsoft dynamics CRM is down(IIS website) using javascript and throw an error on the screen on save event of a record

Hi Guys,

We have a strange requirement regards to CRM error handling.

if I bring IIS down and try to save a contact in CRM - it goes into infinite loop and literally nothing happens.

I thought of adding a javascript on the save event which will check if CRM is down and throw an error.

Any help here is appreciated.

Rawish