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 name = $("input#name").val();
		if (name == "") {
      $("label#name_error").show();
      $("input#name").focus();
      return false;
    }
		var email = $("input#email").val();
		if (email == "") {
      $("label#email_error").show();
      $("input#email").focus();
      return false;
    }
	if((email.indexOf('@') == -1) || (email.indexOf('.') == -1)) {
		 $("label#email_error").show();
      $("input#email").focus();
      return false;
	}
	var contactno = $("input#contactno").val();
	 if(!IsNumeric(contactno)) {
	  $("label#contactno_error").show();
      $("input#contactno").focus();
      return false; 
	}
		var question = $("textarea#question").val();
		if (question == "") {
      $("label#question_error").show();
      $("input#question").focus();
      return false;
    }
		
		var dataString = 'name='+ name + '&email=' + email + '&contactno=' + contactno + '&question=' + question;
		//alert (dataString);return false;
		
		$.ajax({
      type: "POST",
      url: "bin/process.php",
      data: dataString,
      success: function() {
        $('#contact_form').html("<div id='message'></div>");
        $('#message').html("<br><h3>Thank you!</h3>")
        .append("<p>We will get back to you soon.</p>")
        .hide()
        .fadeIn(1500, function() {
          $('#message').append("<img id='checkmark' src='images/check.png' />");
        });
      }
     });
    return false;
	});
});
runOnLoad(function(){
  $("input#name").select().focus();
});