function JSMethod(email_check) {
	temp = email_check.value + " ";
	found = temp.search(/[\w\.-]+@([\w-]+\.){1,3}[a-zA-Z]{2,}\s{1}/);
	if (found == 0) {
		registration_form.send_email.disabled = false;
		registration_form.send_email.className = "std_submit";
	}
	else {
		registration_form.send_email.disabled = true;
		registration_form.send_email.className = "std_submit_disabled";
	}
}