If 1 textfield exceed MaxChars how to put whats left into second field?


I have 2 textfields, and would like to know if the first reaches MaxChars or is more than MaxChars is there a way of getting what it is over MaxChars by, removing this and in turn placing this into (at the begining of) a second textfield?


So far;

trace(_parent.popupbox.content.profile_venue_txt1.length + "char length of venue1Txt")
    MAX =16
    _parent.popupbox.content.profile_venue_txt1.maxChars = MAX;
    if (_parent.popupbox.content.profile_venue_txt1.length > MAX){