JS: Pad number inputs to 2 decimal places

gistfile1.js

// Used to pad numbers inputs to 2 decimal places
function padNumber($input) {

	// Rather than store $(this).val(), it's best to keep checking for changes

	// When we move off the input
	$input.on('blur', function () {

		// Ignore if there's no value
		if ($(this).val() === '') return;

		// Set attr to text
		$(this).attr('type', 'text');
		
		// If we don't have a decimal, pad our value with .00
		if ($(this).val().indexOf('.') === -1) {
			$(this).val($(this).val() + '.00');
		}

		// Keep padding our value with 0 until we have 2 decimal places
		while ($(this).val().indexOf('.') > $(this).val().length - 3) {
			$(this).val($(this).val() + '0');
		}

	// When we focus on the input
	}).on('focus', function () {
		// Set our attr back to number, so our native number controls return
		$(this).attr('type', 'number');
	});

}