// to the button that was clicked. Make No the default button

int $returnCode;

boolean $shouldSave;

$returnCode = `messagePrompt "Not all nodes are selected for export.\n\n Do you still want to save?" -yesNoCancel 0`;

switch( $returnCode )

{

   case -1: // User clicked Cancel. Exit the script

            return; 

   case 0:  // User clicked No. Don't save

            $shouldSave = false; 

            break; 

   case 1:  // User clicked Yes. Can proceed with save 

            $shouldSave = true; 

            break;

}

// Save if it's safe to save, according to the user.

$if( $shouldSave )

{ 

   saveFile -s;