js errors with closure compiler

[tobsn]

JSC_SUSPICIOUS_SEMICOLON: If this if/for/while really shouldnt have a body, use {} at line 50 character 2 in zest.js
while ((el = el.nextSibling)
^
JSC_SUSPICIOUS_SEMICOLON: If this if/for/while really shouldnt have a body, use {} at line 56 character 2 in zest.js
while ((el = el.previousSibling)
^
JSC_SUSPICIOUS_SEMICOLON: If this if/for/while really shouldnt have a body, use {} at line 63 character 4 in zest.js
while (el.nodeType !== 1
^
JSC_SUSPICIOUS_SEMICOLON: If this if/for/while really shouldnt have a body, use {} at line 71 character 4 in zest.js
while (el.nodeType !== 1
^

just so you know ;)
it's in the prev, next, child, lastChild methods.