On Wed, Jul 17, 2013 at 10:51 AM, Dennis Lee Bieber <wlfr...@ix.netcom.com> wrote: > On Tue, 16 Jul 2013 22:43:35 +0300, ??????? <ni...@superhost.gr> declaimed > the following: > >> >>Lest say i embed inside my index.html the Javascript Geo Code. >> >>Is there a way to pass Javascript's outcome to my Python cgi script somehow? >> >>Can Javascript and Python Cgi somehow exchnage data? > > Using plain CGI is going to be painful -- since /everything/ is > handled > a whole new page request. You would have to handle session cookies, etc. > > Your "index.html" would attempt to run the JavaScript (note that some > users may have JavaScript turned off -- how will you handle that), if it > gets information it would have to do a "GET index2.html?lat=xxx?long=yyy" > or something similar, which will result in a new page load on the user -- > hopefully with a cookie set so you know NOT to run the geolocation code on > subsequent pages. > > AJAX is a process to allow JavaScript on the browser to interact with > a > server (using XML data structures), and likely use DOM operations in the > browser (and the last time I did something on this nature, I had to have > different code for Internet Explorer vs Firefox, and don't know of > Chrome/Opera share one of the others calls) to make changes on the web page > without doing a full submit/render operation
AJAX changes the client end, but not the server (well, you might change the server's output format to make it easier, but it's not essential). So you *can* still use the CGI that you're familiar with. For reference, Firefox/Chrome/Opera/Safari are all pretty much identical for this sort of work; and the recent IEs (9, I think, and 10) are following them too. There are trivial differences, but for the basics, it's possible to support IE8+, Chrome, Firefox back as far as the Iceweasel from Debian Squeeze (I think that's Ff 3.5), and so on, all from the same code. No per-browser checks required. ChrisA -- http://mail.python.org/mailman/listinfo/python-list