We have to develop scripts that validate input boxes in forms on our website. In the case where the error messages displayed on site are text messages, we are using text checkpoints.
But if they are javascript message boxes that pop up on an invalid input, we can not capture the "text message" being shown in these boxes.
Ofcourse, the Dialog Boxes can be captured by the Exception Handler, to identify them and click on the required buttons as and when they do appear, but it does NOT validate the messages at point of time or place where they are popping up in the website.

We need to validate that a "particular message" is displayed in a pop-up message box, when an invalid input is given in a "particular input box" on a page.

Any hints??