Is there a replacement for sajax_do_call? I couldn't find one in MW1.17
Topic on Talk:ResourceLoader/Legacy JavaScript
Deprecation of legacy functions are listed on ResourceLoader/JavaScript Deprecations.
sajax_do_call should still work fine in MW1.17, it has not been removed, just deprecated.
ResourceLoader/JavaScript Deprecations lists jQuery.ajax (and helper functions such as $.post, $.getJSON) as recommended replacements.
Yeah, I know that. The problem is that sajax_do_call is a MW specific wrapper, not just a simple ajax call, you have to call index.php with action=ajax with rs=FunctionName and rsargs[]=arguments. This is more complicated than sajax_do_call, and this information is hidden in a footnote on Manual:Parameters to index.php
Edit: Ok, it can be found on Manual:Ajax too. Anyway, I've added an example to this page, is that ok?