[Rails] jquery rails ajax

[esdevs]

so I am using jquery and updating a dom element with

$('#thelist').replaceWith("<%= escape_javascript(render(:partial =>
@deals)) %>");

this works fine except it is not hitting the server so if @deals is
updated, it is not refreshing and showing the latest version. My
question is how to ajax this thing so that it will update to the
latest version of @deals. The full code is:
onPullDown: function () {
            setTimeout(function () {

                $('#thelist').replaceWith("<%=
escape_javascript(render(:partial => @deals)) %>");
                myScroll.refresh();
            });
        },

thanks in advance!

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