Simple placeholder shim for IE. Functions slightly unlike browser placeholders in that the placeholder is removed immedately upon focus. To re-apply or activate elements added to the DOM post-render, simply call `.blur()` on them.

placeholder-shim.js

function initPlaceholderCompat()
{
	var test = document.createElement('input'),
		placeholderSupport = 'placeholder' in test;

	if (placeholderSupport) {
		return;
	}

	$(document).on('focus', '[placeholder]', function() {
		var input = $(this);
		if (input.val() == input.attr('placeholder')) {
			input.val('');
			input.removeClass('placeholder');
		}
	}).on('blur', '[placeholder]', function() {
		var input = $(this);
		if (input.val() == '' || input.val() == input.attr('placeholder')) {
			input.addClass('placeholder');
			input.val(input.attr('placeholder'));
		}
	}).on('submit', 'form', function() {
		$(this).find('[placeholder]').each(function() {
		var input = $(this);
			if (input.val() == input.attr('placeholder')) {
				input.val('');
			}
		})
	});

	$('[placeholder]').blur();
}