// andrew melling.com
// javascript

function limitText(limitField, limitCount, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} else {
		limitCount.value = limitNum - limitField.value.length;
	}
}

function allow_numeric(obj){
	if (/[^0-9]/i.test(obj.value))
		obj.value=obj.value.replace(/[^0-9]/g,'')
		obj.value+=''
		obj.focus()
}