Close a customized box at ESC keypress with JQuery
<div id="modal-dialog" class="no-display">
        <div class="form">
            <div class="close">

            </div>
            <div align="center">
                <h2><u>form</u></h2>
            </div>
            <form>
                <label for="yourname">Full name:</label><input type="text" name="yourname">
                <label for="email">E-mail:</label><input type="text" name="email">
                <label for="message">Message:</label></textarea><textarea type="text" name="message"></textarea><br/>
                <div class="clear"></div>
                <p align="center"><button>Send feedback</button></p>
            </form>
        </div>
    </div>

$("#clickfeed").live("click", function() {
        $("#modal-dialog").removeClass("no-display");
    });

$("#modal-dialog").live("keyup", function(e) {
        if(e.keyCode === 27 && !($(this).hasClass("no-display")))
        {
            $("#feedback-modal-dialog input").each(function() {
                $(this).attr("value","");
            });
            $("#feedback-modal-dialog textarea").each(function() {
                $(this).val("");
            });
            $("#modal-dialog").addClass("no-display"); //or .hide()
        }
    });

$("html").live("keyup", function(e) {

if(e.keyCode === 27 && !($('#modal-dialog').hasClass("no-display")))

    escape_check();

}

}

function escape_check() {

$("#modal-dialog").removeClass("no-display");

$("#feedback-modal-dialog input").each(function() {
    $('#modal-dialog').attr("value","");
});
$("#feedback-modal-dialog textarea").each(function() {
    $('#modal-dialog').val("");
});
$("#modal-dialog").addClass("no-display"); //or .hide()


}