//*********************************************************************************************************************************
//********************************************      EMAIL VALIDATION FUNCTIONS     ************************************************
//*********************************************************************************************************************************

function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
 result = true;
  }
  return result;
}
 
function validRequired(formField,fieldLabel)
{
 var result = true;
 
 if (formField.value == "")
 {
  alert(fieldLabel);
  formField.focus();
  result = false;
 }
 
 return result;
}
 
function allDigits(str)
{
 return inValidCharSet(str,"0123456789");
}
 
function inValidCharSet(str,charset)
{
 var result = true;
 
 // Note: doesn't use regular expressions to avoid early Mac browser bugs 
 for (var i=0;i<str.length;i++)
  if (charset.indexOf(str.substr(i,1))<0)
  {
   result = false;
   break;
  }
 
 return result;
}
 
function validEmail(formField,fieldLabel,required)
{
 var result = true;
 
 if (required && !validRequired(formField,fieldLabel))
  result = false;
 
 if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
 {
  alert("Please enter a complete email address in the form: yourname@yourdomain.com");
  formField.focus();
  result = false;
 }
   
  return result;
 
}
 




 
function validateForm(frmContactUs)
{
 // Customize these calls for your form

 // Start ------->

 if (!validRequired(frmContactUs.txtName,"You must enter your name"))
  return false;
  
 if (!validEmail(frmContactUs.txtEmail,"You must enter your email address"))
  return false;
  

 
 return true;
}


//-------------------------------------------  taken from page ----------------------------------//

     // whitespace characters
      var whitespace = " \t\n\r";

      /****************************************************************/

      // Check whether string s is empty.
      function isEmpty(s)
      { return ((s == null) || (s.length == 0)) }

      /****************************************************************/

      function isWhitespace (s)
      {
           var i;

           // Is s empty?
           if (isEmpty(s)) return true;

           // Search through string's characters one by one
           // until we find a non-whitespace character.
           // When we do, return false; if we don't, 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 ForceEntry(val, str) {
           var strInput = new String(val.value);

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

      }

      /****************************************************************/

      function ValidateRanking() {
           // This function ensures document.forms[0].nRanking.value >=1 && <= 10

           if (parseInt(document.forms[0].nRanking.value) >= 1 && parseInt(document.forms[0].nRanking.value) <=10)
                return true;
           else
                return false;
      }

      /****************************************************************/

      function ValidateData() {
           var CanSubmit = false;

           // Check to make sure that the full name field is not empty.
           CanSubmit = ForceEntry(document.forms[0].txtName,"You must supply a full name.");

           // Check to make sure ranking is between 1 and 10
           if (CanSumbit) CanSubmit = ValidRanking();

           return CanSubmit;
      }
	  
//---------------------------------------------------------------------------------



//*********************************************************************************************************************************
//********************************************     END EMAIL VALIDATION FUNCTIONS     *********************************************
//*********************************************************************************************************************************