How to display placeholder attribute in Internet Explorer

<script type="text/javascript">

function isMsie() {
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf("MSIE ");
    if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv:11./)) { // If Internet Explorer, return true
        return true;
    }
    
    // If another browser, return false
    return false;
}

if(isMsie()) {
    $('[placeholder]').focus(function() {
        var input = $(this);
        if (input.val() == input.attr('placeholder')) {
            input.val('');
            input.removeClass('placeholder');
        }
    }).blur(function() {
        var input = $(this);
        if (input.val() == '' || input.val() == input.attr('placeholder')) {
            input.addClass('placeholder');
            input.val(input.attr('placeholder'));
        }
    }).blur().parents('form').submit(function() {
        $(this).find('[placeholder]').each(function() {
            var input = $(this);
            if (input.val() == input.attr('placeholder')) {
                input.val('');
            }
        })
    });
}
</script>

Download

placeholder_ieFix.zip