jQuery(function() {
	var amount = getURLParameter('amount');

	if (isFinite(String(amount))) {
		// Do allthethings here.
	}
});


function getURLParameter(name) {
    return decodeURI(
        (RegExp(name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1]
    );
}