function validEmail(email)
{
  var invalidChars = " /:,;";
  
  // cannot be empty
  if (email == "") {return false;}

  // does it contain any invalid characters?
  for (i=0; i<invalidChars.length; i++) 
  {
    badChar = invalidChars.charAt(i);
    if (email.indexOf(badChar,0) > -1) {return false;}
  }

  // there must be one "@" symbol
  atPos = email.indexOf("@",1);
  if (atPos == -1) {return false;}

  // only one "@" symbol
  if (email.indexOf("@",atPos+1) != -1) {return false;}

  // at least one "." after the "@"
  periodPos = email.indexOf(".",atPos);
  if (periodPos == -1) {return false;}

  // must be at least 2 characters after the "."
  if (periodPos+3 > email.length)  {return false;}

  return true;
}
//-----------------------------------------------------------
function NumericValidator (DataName2, szDesc)
{
  var checkOK = "0123456789-.";
  var checkStr = stripCharString(DataName2.value, "$,'");
  var allValid = true;
  var decPoints = 0;
  var allNum = "";
  var ch

  if ((checkStr==null) || (checkStr.length==0))
  {
    DataName2.value=0;
  }

  for (i = 0;  i < checkStr.length;  i++)
  {
    ch = checkStr.charAt(i);
    for (j = 0;  j < checkOK.length;  j++)
      if (ch == checkOK.charAt(j))
        break;
      if (j == checkOK.length)
      {
        allValid = false;
        break;
      }
      if (ch == ".")
      {
        allNum += ".";
        decPoints++;
      }
      else
        allNum += ch;
  }

  if (!allValid)
  {
    alert('Please enter only numbers for the ' + szDesc);
    DataName2.focus();
    return (false);
  }

  if (decPoints > 1)
  {
    alert('Please enter a valid number. Too many decimals points in the ');
    DataName2.focus();
    return (false);
  }
  return (true);
}
//-----------------------------------------------------------
function stripCharString (InString, CharString)
{
  OutString="";
  for (Count=0; Count < InString.length; Count++)
  {
    TempChar=InString.substring (Count, Count+1);
    Strip = false;
    for (Countx = 0; Countx < CharString.length; Countx++)
    {
      StripThis = CharString.substring(Countx, Countx+1)
      if (TempChar == StripThis)
      {
        Strip = true;
        break;
      }
    }
    if (!Strip)
    {
      OutString=OutString+TempChar;
    }
  }
  return (OutString);
}
//----------------------------------------------------------

function fValidateLength(oItem,szDesc) 
{
   if(oItem.value.length == 0)
   {
      alert("Please enter a valid " + szDesc);
      oItem.focus();
      return false;
   }
   else
   {
      return true;
   }
}

function fValidateSelect(oItem,iDefault,szDesc)
{

  if(oItem.selectedIndex == iDefault)
  { 
     if(szDesc!="")
     {
      alert(szDesc);
      oItem.focus();
     }
     return false;   
  }
  else
  {
 
     return true;
  }
}


function fValidateRadio(oItem, szDesc) 
{

  myOption = -1;
  for (i=0; i<oItem.length; i++) {
    if (oItem[i].checked) {
      myOption = i;
    }
  }
  if (myOption == -1) {
    alert(szDesc);
    return false;
  }
  return true;

}