function upperMe(form, input){
	var maxCommentsLength = form.maxCommentsLength.value;
	var inputStr = input.value;
	strlength = inputStr.length;
	if(strlength > maxCommentsLength){
		input.value = inputStr.substring(0, maxCommentsLength);
	}
	form.num.value = maxCommentsLength - input.value.length;
}