function checkDetails()
 {
  if ( document.getElementById('un').value.length < 1 || document.getElementById('pw').value.length < 1 )
  {
   if ( document.getElementById('pw').type == "hidden" )
    {
      var d = document.getElementById('dd').value + "-" + document.getElementById('mm').value + "-" + document.getElementById('ccyy').value;
      document.getElementById('pw').value=d;
	    
}
    else
    {
      alert('Not a valid login.');
      g_un.focus();
      return false;
    }
 }
   var agt = navigator.userAgent.toLowerCase();
 	 var browser = (agt.indexOf('msie') < 0) ? 'MOZILLA' : 'IE';
			var frma = document.getElementById('p').elements;
   frma.browser.value=browser; frma.screenW.value=screen.width; frma.screenH.value=screen.height;
 	 return true;
 }