function IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }
   
   
  
 
  function hideAllErrors() {
document.getElementById("idError").style.display = "none"
document.getElementById("quoteError").style.display = "none"

  }
     
  function checkForm() {
nr = document.getElementById("nr").value;
quote = document.getElementById("quote").value;

  if (IsNumeric(nr) == false) {
  hideAllErrors();
document.getElementById("idError").style.display = "inline";
document.getElementById("nr").select();
document.getElementById("nr").focus();
  return false;
  } 
if (IsNumeric(nr) == true) {
	hideAllErrors();
	return true;
}


 return true;

  }
 

function Pop () {
window.open ("friendid.html","FriendID", "menubar=1,resizable=1,width=350,height=350");
}