$(staticAncestors).on(eventName, dynamicChild, function() {});

$(selector).live( eventName, function(){} );

$(selector).live( eventName, function(){} );

$(document).on( eventName, selector, function(){} );

$(document).on('mouseover mouseout', '.dosomething', function(){
    // what you want to happen when mouseover and mouseout 
    // occurs on elements that match '.dosomething'
});

$('.buttons').on('click', 'button', function(){
    // do something here
});

<div class="buttons">
    <!-- <button>s that are generated dynamically and added here -->
</div>

<div id="source">
...
</div>

<div id="destination">
...
</div>

<div id="destination">
  <div id="source">
    ...
  </div>
</div>

$("#source").appendTo("#destination");

$("#source").prependTo("#destination");

Answer:

http://localhost/menuname.de?foo=bar&number=0

var pathname = window.location.pathname; // Returns path only
var url      = window.location.href;     // Returns full URL

• abort Method (MSDN). Cancels the current HTTP request.
• abort() (MDN). If the request has been sent already, this method will abort the request.

var xhr = $.ajax({
    type: "POST",
    url: "some.php",
    data: "name=John&location=Boston",
    success: function(msg){
       alert( "Data Saved: " + msg );
    }
});

//kill the request
xhr.abort()

$input.disabled = true;

$input.disabled = "disabled";

Answer:

jQuery 1.6+

$("input").prop('disabled', true);
$("input").prop('disabled', false);

jQuery 1.5 and below

$("input").attr('disabled','disabled');

$("input").removeAttr('disabled');

In any version of jQuery

// assuming an event handler thus 'this'
this.disabled = true;

       Note: Do not use this method to remove native properties such as checked, disabled, or selected. This will remove the property completely and, once removed, cannot be added again to element. Use .prop() to set these properties to false instead.