var isNav, isIE;
    if(parseInt(navigator.appVersion) >= 4) {
      if(navigator.appName == "Netscape")
        isNav = true
      else
        isIE = true;
    }

    /* checks while typing*/
    function maxlengthCheck(txt, evtThis, maxlength){
      if(txt.value.length >= maxlength){
        if (isIE)
          event.keyCode = 0 // IE
        else
          return false;  // Netscape
        maxlengthHack(txt, maxlength);
        return false;
      }
    }

    /* checks for pasted in text, etc*/
    function maxlengthHack(txt, maxlength){
      if(txt.value.length >= maxlength){
        txt.value = txt.value.substring(0,maxlength);
      }
    }
function rowEffect(object, current_class, new_class) {
	if (object.className == current_class) object.className = new_class;
}