%
% identify the comm sender's browser window
%
% stack: document-title window-class
%
*indyfinf
%
%            optional items included         if window exists
% stack: [ handle ] [ full-name ] [ class ] exists
%
{
 !JS.Class
 !JS.Caption

 dup Win.Max
}
{
%
% no such browser, should not happen, a browser was started
%
 0
} ifelse
dupnzis
%
% stack: [ hwnd ] if hwnd valid
%          hwnd-valid
%