$(document).ready(function() {
	var message= "your e-mail address";
	$("#email_capture").val(message);
	$("#email_capture").focus( function() {
		if ($(this).val() == message) { $(this).val(""); }
	} );
	$("#email_capture").blur( function() {
		if ($(this).val() == "") { $(this).val(message); }
	});
});