SO-21459599

HTML

<div id="fold">
    <p id="fold_p">Fold it</p>
</div>

JavaScript

$(document).ready(function () {
    var fold = $("#fold");
    fold.cliked = 1;
    fold.click(function () {
        $("#fold_p").text((fold.cliked++ % 2 == 0) ? "Fold it" : "Expand it");
    });
});