Edit in JSFiddle

$(function () {
    $("#Btn_HTML").click(function () {
        $.ajax({
            url: "/echo/html/",
            type: "POST",
            data: {
                html: "Get HTML Data"
            }
        }).done(function(data){
            $("#result").html(data)
        });
    });
    
    $("#Btn_JSON").click(function () {
        $.ajax({
            url: "/echo/json/",
            type: "POST",
            data: {
                json: JSON.stringify({
                    firstName: "aa",
                    "lastName": "bb"
                })
            },
            dataType: "json"
        }).done(function(data){
            var html = "firstName = " + data.firstName + "<br/>";
            html += "lastName = " + data.lastName;
            $("#result").html(html);
        });
    });
    
    $("#Btn_JSONP").click(function(){
        $.ajax({
            url: "/echo/jsonp/",
            type: "GET",
            data: {
                a: 1,
                b: 2,
                c: 3
            },
            dataType: "jsonp"
        }).done(function(data){
            var html = "a:" + data.a + "<br/>";
            html += "b:" + data.b + "<br/>";
            html += "c:" + data.c + "<br/>";
            $("#result").html(html);
        });
    });
    
    $("#Btn_XML").click(function(){
        $.ajax({
            url: "/echo/xml/",
            type: "POST",
            data: {
                xml: "<root><aa>xml data</aa></root>"
            },
            dateType: "xml",
            success: function(data){
                $("#result").html($(data).first().text());
            }
        });
    });
    
    $("#Btn_JavaScript").click(function(){
        $.ajax({
            url: "/echo/js/",
            type: "GET",
            data:{
                js: "alert('qq');"
            },
            dataType: "script"
        });
    });
});

<input type="button" id="Btn_HTML" value="HTML" />
<input type="button" id="Btn_JSON" value="JSON" />
<input type="button" id="Btn_JSONP" value="JSONP" />
<input type="button" id="Btn_XML" value="XML" />
<input type="button" id="Btn_JavaScript" value="JavaScript" />
<br />
<fieldset>
    <legend>Result</legend>
    <div id="result"></div>
    <br />
</fieldset>