void swf_Relocate(SWF*swf, char*bitmap); // bitmap is 65536 bytes, bitmap[a]==0 means id a is free
void swf_RelocateDepth(SWF*swf, char*bitmap); // bitmap is 65536 bytes, bitmap[d]==0 means depth d is free
+TAG* swf_Concatenate (TAG*list1,TAG*list2); // warning: both list1 and list2 are invalid after this call.
+
// swfcgi.c
void swf_uncgi(); // same behaviour as Steven Grimm's uncgi-library