Warning message is shown twice when I'm moving out of Forms (LP & Simple Wiki)

Open any of these forms

Now click on 'Add a Resource' link in left nav panel.

Warning message is displayed. Click on OK. Now Add path dialogue is displayed.

Select the other form (Select LP if you already selected Simple Wiki)

Now the warning message is again displayed. This is not required.

Also title of the warning message is different in IE & FF.

Pl see the images attached for reference