I would like to know how could the error indicators be captured through perl scripting. To be more clear on this question, let's assume, there's a textbox in a web application. It shall accept only numerals, but 'characters' have been keyed in as input for the field and tab key has been pressed. There's an error indicator appeared besides the textbox. On mouse over, the tool tip shows the error message "Characters are not accepted". My question is how to get that error message through perl.