//ID starts with "Spacer" - spacer tag
else if (seqID.startsWith("Spacer")) { //$NON-NLS-1$
seqE = new Element(SPACER,ns);
seqE.setAttribute(ID,seqID,ns);
seqE.addContent(new Element(TYPE,ns).addContent(String.valueOf(((NucleotideSequence) seq).getType())));
seqE.addContent(new Element(SEQUENCE,ns).addContent(seq.seqString()));
}
//Otherwise - normal tag
else if (seq instanceof NucleotideSequence){
KeyValue kv = getLibraryTag(libraries,seqID);
if (kv == null) {