function IsNumeric(sText)

{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }

$(function() {
  $('.error').hide();
  $('input.text-input').css({backgroundColor:"#FFFFFF"});
  $('input.text-input').focus(function(){
    $(this).css({backgroundColor:"#FFDDAA"});
  });
  $('input.text-input').blur(function(){
    $(this).css({backgroundColor:"#FFFFFF"});
  });

  $(".button").click(function() {
		// validate and process form
		// first hide any error messages
    $('.error').hide();
		
	  var sender_name = $("input#sender_name").val();
		if (sender_name == "") {
      $("label#sender_name_error").show();
      $("input#sender_name").focus();
      return false;
    }
		var sender_email = $("input#sender_email").val();
		if (sender_email == "") {
      $("label#sender_email_error").show();
      $("input#sender_email").focus();
      return false;
    }
	if((sender_email.indexOf('@') == -1) || (sender_email.indexOf('.') == -1)) {
		 $("label#sender_email_error").show();
      $("input#sender_email").focus();
      return false;
	}
	
	  var recipient_name = $("input#recipient_name").val();
		if (recipient_name == "") {
      $("label#recipient_name_error").show();
      $("input#recipient_name").focus();
      return false;
    }
	var recipient_email = $("input#recipient_email").val();
	if (recipient_email == "") {
      $("label#recipient_email_error").show();
      $("input#recipient_email").focus();
      return false;
    }
	if((recipient_email.indexOf('@') == -1) || (recipient_email.indexOf('.') == -1)) {
		 $("label#recipient_email_error").show();
      $("input#recipient_email").focus();
      return false;
	}	
	var message = $("textarea#message").val();
		var url=window.parent.location;
		var dataString = 'sender_name='+ sender_name + '&sender_email=' + sender_email + '&recipient_name=' + recipient_name + '&recipient_email=' + recipient_email + '&message=' + message;
		//alert (dataString);return false;
		
		$.ajax({
      type: "POST",
      url: "bin/tell-friend-send.php",
      data: dataString,
      success: function() {
        $('#tellfriend').html("<div id='message'></div>");
        $('#message').html("<h3>Thank you!</h3>")
        .append("<p>Your friend will receive your message</p><br>")
        .hide()
        .fadeIn(1500, function() {
          $('#message');
        });
      }
     });
    return false;
	});
});
runOnLoad(function(){
  $("input#name").select().focus();
});