maxKeys = 400;
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 = len + " characters entered. Minimum " + maxKeys + " needed.";
  txtshow( showstr );
}