For selecting text try this (untested):

$(document).ready(function () {

    $("form div input").focus(function () {

        $("form div").each(function () {
            $(this).css("background-color", "white");
        });

        $(this).parent().css("background-color", "#F2FAED");

        $(this).select();
    });

});

As for setting the width of the div, the width attribute is probably deprecated, but setting it through the style should still work (and I believe is the preferred way). The same goes for your controls.