function isEmail(strEmail) {
		var str = strEmail
		var filter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
		if (filter.test(str)) {
			return true;
	 	} else {
	 		return false;
	 	}
	}