function validateNumeric(inputString){
	for (var i=0; i<inputString.length; i++){
		if (("0123456789").indexOf(inputString.charAt(i)) == -1){
			return false;
		}
	}
	return true;
}
function validateDouble(inputString){
	for (var i=0; i<inputString.length; i++){
		if (("0123456789.").indexOf(inputString.charAt(i)) == -1){
			return false;
		}
	}
	return true;
}
function removeNonNumerics(inputString){
	var returnString = '';
	for (var i=0; i<inputString.length; i++){
		if (("0123456789.").indexOf(inputString.charAt(i)) != -1){
			returnString = returnString + inputString.charAt(i);
		}
	}
	return returnString;
}
function removeNonIntegers(inputString){
	var returnString = '';
	for (var i=0; i<inputString.length; i++){
		if (("0123456789").indexOf(inputString.charAt(i)) != -1){
			returnString = returnString + inputString.charAt(i);
		}
	}
	return returnString;
}
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