Reigel's demo page

HTML

<form id="myForm">
    <div style="margin-bottom:4px;" class="clonedInput">
        <input type="button" name="btnDelete1" class="btnDel" value="Delete" disabled="disabled" />
        <input type="text" name="input1" />
    </div>
    
    <div>
        <input type="button" id="btnAdd" value="add another name" />
    </div>
</form>

JavaScript

$(document.body).keypress(function(e){
   var code = e.keyCode ? e.keyCode : e.which;
   alert(code);
});