I have a music artist contacts database with fields for social media URLs. On the side of the layout I have image icons (Twitter, Facebook, etc..) that are buttons with corresponding scripts to "Open URL" typed in the fields. My desire is, if the URL field is empty, the button script can manage a dialog that reads (ex.) "Instagram URL does not exist" and then the user clicks "Ok" then the script ends. Likewise, if the field contains a valid URL then the script executes as normal, which is the basic "Open URL" function. Thanks for your help!!!