// JavaScript Document

		maxKeys = 600;
            var IE = (document.all) ? 1 : 0;
            var DOM = 0; 
            if (parseInt(navigator.appVersion) >=5) {DOM=1};

        function txtshow( txt2show ) {
            
            // Detect Browser

            if (DOM) {
		var viewer = document.getElementById("txtmsg");
                viewer.innerHTML=txt2show;
            }
            else if(IE) {
                document.all["txtmsg"].innerHTML=txt2show;
            }
        }

function keyup(what) 
{
  var str = new String(what.value);
  var len = str.length;
  var showstr = "<b>"+ len + "</b> caracteres, de um máximo de <b>" + maxKeys + "</b> permitidos";
  if (len > maxKeys) showstr += '<br>Passou o limite de characteres permitidos';
  txtshow( showstr );
}