$(document).ready(function() {
    var inputs = $("input.inp");
    inputs.each(function() {
        var el = $(this);
        el.attr("defVal", el.val());
    });
    inputs.focus(function() {
        var el = $(this);
        if (el.val() == el.attr("defVal")) {
            el.val("");
            el.addClass("inp-active");
        }
    });
    inputs.blur(function() {
        var el = $(this);
        if (el.val() == "") {
            el.val(el.attr("defVal"));
            el.removeClass("inp-active");
        }
    });
});