var whitespace = " \t\n\r";
var canSubmit = false;
var cntrl=window.document.forms[0];

   
 function isEmpty(s)
 {
   if((s == null) || (s.length == 0))
   return true;
 }


 function isWhitespace (s)
 {
      var i;

      if (isEmpty(s)) return true;

      for (i = 0; i < s.length; i++)
      {
           // Check that current character isn't whitespace.
           var c = s.charAt(i);

           if (whitespace.indexOf(c) == -1) return false;
      }
      // All characters are whitespace.
      return true;
 }


function PromptErrorMsg(Field,strError)
{
	alert("You have entered an invalid " + strError + ".  Please make sure your date format is in M/D/Y format.");
	Field.focus();
	Field.select();
}


function ForceEntry(inputFld, str) 
{
     var strInput = new String(inputFld.value);

     if (isWhitespace(strInput)) 
     {
         alert(str);
         inputFld.focus();
         return false;
     }
     else
     {
          return true;
     }
}


function CheckForm()
{
     canSubmit = ForceEntry(document.form1.userName, "Please enter your user name.");
     if (canSubmit==false)
     {
  		return canSubmit;
  	 }
  	 
     canSubmit = ForceEntry(document.form1.password, "Please enter your password.");
     if (canSubmit==false)
     {
  		return canSubmit;
  	 }
}