Edit in JSFiddle

Please fill out the form:
<div id="content">
    <div>Field1: <input type="text"></div>
    <div>Field2: <input type="text"></div>
    <div>Field3: <input type="text"></div>
    <div>Field4: <input type="text"></div>
</div>
<div id="buttons">
    <input type="button" value="Process" id="process">
    <input type="button" value="Cancel" id="cancel">
</div>

$("#process").on("click", function() {
    $(this).attr("disabled", "disabled");
    $("#content").mask("Waiting...");
});

$("#cancel").on("click", function() {
    $("#process").removeAttr("disabled");
    $("#content").unmask();
});