MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Reference page 141

if (i%3 == 0) {
continue;
}
trace(i);
}
In the following
for..in
body and jump back to the top of the loop, where the next value in the enumeration is processed:
for (i in _root) {
if (i == "$version") {
continue;
}
trace(i);
}
See also
do while, for, for..in,
loop, causes the Flash interpreter to skip the rest of the loop
continue
while
continue 141