Accept credit cards by swiping in NetSuite using USB credit card reader

swipe_cc.js

/**
 * Accept credit cards by swiping in NetSuite using USB credit card reader
 * (http://www.ebay.com.au/sch/i.html?_nkw=Magnetic+Stripe+Swiper)
 * 
 * To deploy:
 * 
 * 1) Upload this file to File Cabinet
 * 2) In your custom Sales Order form, add the script file (no need to associate with any events) 
 * 3) Add an 'Inline HTML' custom field to the form with default value:
 * 		<a href="javascript:swipe_cc();">Swipe Credit Card</a>
 * 
 * Version    Date            Author           Remarks
 * 1.00       15 May 2015     michoel
 *
 */


function swipe_cc() {
	var card_data = window.prompt("Scan Card");

	// See http://en.wikipedia.org/wiki/ISO/IEC_7813
	var track1_regex = new RegExp("^%B([\\d]{1,19})\\^(.{2,26})\\^([\\d]{0,4}|\\^)([\\d]{0,3}|\\^).+");
	var track2_regex = new RegExp(";([\\d]{1,19})\\=(\\d{4}|\\=)");

	var track1_match = track1_regex.exec(card_data);
	var track2_match = track2_regex.exec(card_data);

	var number, name, expiry;

	if(track1_match) {
		number = track1_match[1];
		name = track1_match[2];
		expiry = track1_match[3];
	} else if (track2_match) {
		number = track2_match[1];
		name = "";
		expiry = track2_match[2];
	} else {
		window.alert('Could not read credit card data!');
		return;
	}

	expiry = expiry.substr(2, 2) + "/" + '20' + expiry.substr(0, 2);

	nlapiSetFieldValue('ccName', name);
	nlapiSetFieldValue('ccNumber', number);
	nlapiSetFieldValue('ccExpireDate', expiry);
}

Is there a specific place or way to upload this? My custom field isn't doing anything. I uploaded the JS file to the SupiteScripts folder.