TEHRAN, Sept 23 (AFP) - The government of Iran's reformist President Mohammad Khatami is to submit a bill to Majlis Tuesday seeking to expand presidential powers limited by conservative-dominated institutions, IRNA reported Monday. Vice President for legal and parliamentary affairs Mohammad-Ali Abtahi will introduce the bill, IRNA said. The bill, details of which have yet to be released, has to be discussed in the relevant Majlis committee before being put to the vote, a procedure that may take several weeks considering parliament's busy agenda, unless it wins priority. It is about "more precise and concrete application of the constitution", Khatami...