IE7 and IE6 on win xp error when changing "disable" state of "Start date"

JS debuger opens with the marked line selected.

function lockoptionsall(formid) {
var form = document.forms[formid];
var dependons = eval(formid+'items'); <---

Line: 88
Error: ';' expected

I experience this behaviour with a compleatly fresh and unchanged 1.8.2 install.