function cleanupInput(input, chars_to_remove)
{
	var new_input = "";
	for(var i = 0; i < input.length; i++)
	{
		if (chars_to_remove.indexOf(input.charAt(i)) < 0)
		{
			new_input += input.charAt(i);
		}
	}
	return new_input;
}

function cleanupAmount(input, chars_to_remove)
{
	//input = input.replace(",", ".");
	return Number(cleanupInput(input, chars_to_remove));
}

function cleanupRate(input, chars_to_remove)
{
	input = input.replace(",", ".");
	return Number(cleanupInput(input, chars_to_remove));
}