$(document).ready(function(){		
	clearDefaultText("#first_name", "first name");
	replaceEmptyField("#first_name", "First Name");

	clearDefaultText("#last_name", "last name");
	replaceEmptyField("#last_name", "Last Name");
		
	clearDefaultText("#email", "email address");
	replaceEmptyField("#email", "Email Address");

	function clearDefaultText (element, expected) {
		$(element).focus(function(){
			var elementName = $(this).val();
			if (elementName.toLowerCase() == expected) {
				$(this).val("");
			}
		});
	}
	
	function replaceEmptyField (element, expected) {
		$(element).blur(function(){
			var elementName = $(this).val();
			if (elementName == '') {
				$(this).val(expected);
			}
		});
	}
});