const formTokens = new Array();
var gRecaptchaSiteKey = '6LfUsukjAAAAAKwqILex8v015jdNdlroMNl3Kl4L';
window.addEventListener('load', () => {
	// Initiate gRecaptcha
	if (typeof grecaptcha !== 'undefined') {
		grecaptcha.ready(() => {
			grecaptcha.execute(gRecaptchaSiteKey, {
				action: 'submit'
			}).then(token => {
				for (var i = 0, length = formTokens.length; i < length; i++) {
					document.getElementById(formTokens[i]).value = token;
				}
			});
		});
		// Refresh gRecaptcha
		setInterval(function() {
			grecaptcha.ready(() => {
				grecaptcha.execute(gRecaptchaSiteKey, {
					action: 'submit'
				}).then(token => {
					for (var i = 0, length = formTokens.length; i < length; i++) {
						document.getElementById(formTokens[i]).value = token;
					}
				});
			});
		}, 90 * 1000); // 90 seconds, 1.5 minutes (because it expires after two minutes)
	}
});