function dynChecksum(dynKey) { ae = document.getElementById(dynKey + "a"); be = document.getElementById(dynKey + "b"); ce = document.getElementById(dynKey + "c"); de = document.getElementById(dynKey + "d"); ae.value = 5599; be.value = 1650; ce.value = (7 * 5599) + 1650; de.value = "6b50513c08e67fbbebf44d4e84de39ef"; }