function isNumeric(inputVal) {
	for (var x = 0; x < inputVal.length; x++) {
		var character = inputVal.charAt(x);	
		if (character != null) {
			if (character != "0" &&
				character != "1" &&
				character != "2" &&
				character != "3" &&
				character != "4" &&
				character != "5" &&
				character != "6" &&
				character != "7" &&
				character != "8" &&
				character != "9") {
				return false;
			}
		}
	}
	return true;
}