Input placeholder support for old IE browsers

ie-placeholder.js

// Placeholder support for IE and older browsers.
// http://www.femgeek.co.uk/html5-placeholders-for-troublesome-browsers-ie-ie9/

$.support.placeholder = ('placeholder' in document.createElement('input'));

$(function() {  
    if(!$.support.placeholder) {
        var active = document.activeElement;
        $('textarea').each(function(index, element) {
            if($(this).val().length === 0) {
               $(this).html($(this).attr('id')).addClass('hasPlaceholder');
            }
        });

        $('input, textarea').focus(function () {
            if ($(this).attr('placeholder') !== '' && $(this).val() == $(this).attr('placeholder')) {
                $(this).val('').removeClass('hasPlaceholder error');
            }}).blur(function () {
                if (($(this).attr('placeholder') !== '' && ($(this).val() === '' || $(this).val() == $(this).attr('placeholder')))) {
                    $(this).val($(this).attr('placeholder')).addClass('hasPlaceholder');
                }
        });
        $(':text').blur();
        $(active).focus();
        $('form').submit(function () {
            $(this).find('.hasPlaceholder').each(function() { $(this).val(''); });
        });
    }
});