//************************************************************************************* 
//*                               fnIsNumber.js
//*                               -------------                   
//*                                                                  
//*  Desc: Function - Is string a valid Number                                      
//*                                                                  
//*  Example of Call:                                                 
//*  ----------------                                                
//*  <SCRIPT LANGUAGE="Javascript" SRC="/csjs/fnIsNumber.js"></SCRIPT> 
//*  fnIsNumber("XXXXXX");             
//*                                                                   
//* Maintenance                                                       
//* -----------   
//*************************************************************************************
function fnIsNumber(inStr)
{
 
  if (inStr.length == 0)
   {
     return false;
   }
  var myLength = inStr.length;
  for (var mySub = 0; mySub < myLength; mySub++)
   {
     var myOneChar = inStr.charAt(mySub);
     if (myOneChar < "0" || myOneChar > "9")
      {
        return false;
      }
   }
   return true;
 }