Jatiya Party splits again as Secretary General Ziauddin Ahmed Bablu announced Raushan Ershad as acting chairman of the party.He announced this at a press briefing at Raushan Ershad`s Gulshan residence in the capital on Monday night.Bablu said leaders and activists of the party have been puzzled as Ershad on Sunday announced his brother as JP Co-chairman without discussing in the party forum and with its presidium members.He said, there is no provision for the post of a co-chairman in the party charter. It is completely against the spirit of the constitution.According to the article 39 of the party charter, none can announce anyone as a co-chairman of the party, he added.