Urgent problem with HTMLLoader class and system keyEvents

Hi all, I am building small browser with adobe air.

Everything works well expect problems with forms on websites which I load in HTMLLoader.

I found way to change text fields in html part but I need to have enter and tab functionality in my virtual keyboard.

When enter is pressed on virtual keyboard I also made, form needs to be sent (as on standards browsers).

I tried to dispatch KeyboardEvent (event for enter tab) on click on button in virtual keyboard but nothing happens.

Can anybody to help me with this issue.

Thanks in advance.