$(document).ready(function(){
	$("#sm_username").fieldtag({ markedClass: "sm_watermark", standardText: "username" });
	$("#sm_password").fieldtag({ markedClass: "sm_watermark", standardText: "password" });
});
function validateUserLogin(){
	$('#sign_in_error').text('');
	if($('#sm_username').hasClass('sm_watermark')){
		$('#sm_username').focus();
		$('#sign_in_error').text('Username field cannot be left blank.');
		return false;
	}
	if($('#sm_password').hasClass('sm_watermark')){
		$('#sm_password').focus();
		$('#sign_in_error').text('Password field cannot be left blank.');
		return false;
	}
	return true;
}