I know this is an old post but thought it was worth try asking. My requirement is there are set of 2 radio buttons and only one of them can be selected. I have given them same 'name' and that functionality works. I have a custom rule defined which checks to see if "Physician" radio button is checked then we validate that a "Speciality" from the specialty dropdown has been selected.
The problem I am running into is that when I check Physician radio button and do not select a Specialty I get an error pop-up which is blank. No error message. I have around 15 other custom validation on same page which form flawlessly.
Here is link to my code. http://jsfiddle.net/tpBEb/76/
Do you see anything wrong with the way I have written my html or custom validator rule ?