[jQuery] post an array

[Adonis]

Hi,

I can not upload an array to the server...

I am using this:

$.post("/addPolyline/", {project_name:project_name,
polyline_coordinates:vertexArray}, function(data){
alert("Done");
});

project_name is a string.
The vertexArray contains coordinates so it could look like this:
[(-11.2323,34.3455),(12.2323,34.3455),(18.2323,-78.3455),
(13.2323,35.3455)]. The server side is fine because it works if i do
not send the array.

I tried different syntax such as the site recommends(e.g
'polyline_coordinates[]':vertexArray) but still it does not work...

Any ideas?