function img_act(imgName, statusMessage)
{
  status = statusMessage;
  if (document.images)
   {
     imgOn = eval(imgName + "on.src");
     document [imgName].src = imgOn;
   }
}

function img_inact(imgName)
{
  status = '';
  if (document.images)
  {
    imgOff = eval(imgName + "off.src");
    document [imgName].src = imgOff;
  }
}

function logout()
{
	if (confirm('Are you ready to Log Out?'))
	{
		window.location = 'https://secure-one.divisionsix.com/guntrainers/logout.php';
	}
}

function ShowEmail(prefix, suffix)
{
  document.write('<A HREF="mailto:' + prefix + "@" + suffix + '">' +
prefix + "@" + suffix + '</a>');
}

function unFrame() 
{
	if (self != top)
		{top.location.href = self.location.href;}
}

function BringToTop()
{
   var Nav = navigator.appVersion;

   if (-1 < Nav.indexOf("MSIE 3.0"))
   {
     window.focus;
   }
   else
   {
     window.focus();
   }
}

NUMERIC="0123456789";
function FilterString(txt, ValidChars)
{
  var TempString="";
  var newvalue = "";
  newvalue = txt.value;

  for (var i=0; i < newvalue.length; i++)
  {
    var ch=newvalue.substring(i, i+1)
    if (ValidChars.indexOf(ch) != -1)
      TempString=TempString+ch;
  }                                   
  txt.value = TempString;
}

function OpenHelpWindow(url) {
  var CartWin=window.open(url, "Help", "toolbar=0,status=1,location=0,directories=0,menubar=0,resizable=1,scrollbars=1,width=350,height=400");
}