Easy jQuery/Ajax question on how to send values from a form

I am new to jQuery and Ajax but I understand some simple things. However my question is what I need to add to my existing code to submit the valu开发者_开发问答e of the selected value of the autocomplete script I use?

Thank you.

$("#s").autocomplete("rpc.php", {
    width: 250,
    selectFirst: false,
    minChars: 3,
    scroll:true,
    matchContains: true,
    scrollHeight: 250
}).result(function(event, item) {
     $.ajax({
        // what to send here?

            })
});

<form method="get" action=".php">
<input type="text" name="s" id="s" class="inputsearch">
<input id="searchform" type="submit">
</form>

.result(function(event, item) {
 $.ajax(
     {
         data: item,
         url: "insert url here",
     })
 });

jQuery AJAX form submission not working shows a good example to submit a form with ajax. You have only to change the value 'post' to 'get'