function limitText() {
		var limitField =document.getElementById('limitedtextarea');
		var limitCount = document.getElementById('countdown');
		var limitNum = 100;
        if (limitField.value.length > limitNum) {
                limitField.value = limitField.value.substring(0, limitNum);
        } else {
                limitCount.value = limitNum - limitField.value.length;
        }
}