Polyfill for the Input "Placeholder" Attribute.

jquery.activatePlaceholders.js

function activatePlaceholders() {
	var detect = navigator.userAgent.toLowerCase(); 
	if (detect.search("msie") > 0 ) {
		$('input[type=text],input[type=email]').each(function(ind,elem) {
			if ($(elem).attr('placeholder') != ""){
				$(elem).val($(elem).attr("placeholder"));
				
				$(elem).click(function() {
					if ($(this).val() == $(this).attr("placeholder")) {
						$(this).val("");
					}
				});
				$(elem).blur(function() {
					if ($(this).val() == "") {
						$(this).val($(this).attr("placeholder"));
					}
				});
		   }

		});
	}
}