Edit in JSFiddle

/*in this case it won't work because of the cross domain security policy enforced. So with that you will see the failure callback which produces the it didn't work alert box. If you look at your debugging console you will see something like 

/*XMLHttpRequest cannot load http://musicm122.blogspot.com/. Origin http://fiddle.jshell.net is not allowed by Access-Control-Allow-Origin. */
*/


//http://api.jquery.com/jQuery.ajax/
//the done and fail functions both take a function as an
//argument and execute in different circumstances
var myRequest = $.ajax({
    url: "http://musicm122.blogspot.com",
    context: document.body
}).done(function (data) {
    $("#contentDumper").html(data);
    alert("done");
}).fail(function(){
    alert("it didn't work :(");
});


//the click method takes a callback that gets called when the button is clicked

$("#exeBtn").click(function(){
    myRequest();
});



<div id="contentDumper"></div>
<input type="button" id="exeBtn" />