var terms_confirmed = true;

function scroll_terms(position, end) {
	if (position >= (end - 100)) {
		document.getElementById('submit_btn').disabled = false;
		terms_confirmed = true;
	}
}

function terms_check() {
	if (!terms_confirmed) {
		alert ("You must read through and agree to the terms of service to signup");
	} else {
		document.getElementById('signup_form').submit();
	}
}