<!-- MATH CAPTCHA --> 
<script>
// Contact Form Captcha
(function($) {
		"use strict";

		$.fn.captcha = function(param) {
				// DEFAULT VARIABLES
				var params = $.extend({
						idCaptchaText: 'captchaText',   // The ID for the captcha text which is the label as the math question. Default is 'captchaText'.
						idCaptchaInput: 'captchaField', // The ID for the captcha input. Default is 'captchaInput'.
						class: ''                       // Class name for the submit button toggle. Default is ''.
				}, param);

				// Find and disable the submit button
				var submit = $(this).find('input[type=submit]');
				submit.attr('disabled', 'disabled');

				// Insert captcha text and input before the submit button with the given ID's
				$('<label id="' + params.idCaptchaText + '"></label>');
				$('<input id="' + params.idCaptchaInput + '" aria-label="Captcha Input" type="text" required>');   

				// Select text and input elements to fill
				var label = this.find('#' + params.idCaptchaText);
				var input = this.find('#' + params.idCaptchaInput);

				// Generate random numbers and the sum of them
				var rndmNr1 = Math.floor(Math.random() * 10),
						rndmNr2 = Math.floor(Math.random() * 10),
						totalNr = rndmNr1 + rndmNr2;

				// Print the numbers to screen
				//$(label).text(rndmNr1 + ' + ' + rndmNr2 + ' =');
				$(input).attr("placeholder", rndmNr1 + ' + ' + rndmNr2 + ' =');

				// Check the input value, enable it if the sum is correct
				$(input).keyup(function () {
						if ($(this).val() == totalNr)
								submit.removeAttr('disabled').addClass(params.class);
						else
								submit.attr('disabled', 'disabled').removeClass(params.class);
				});

				// Don't breake jQuery chain!
				return this;
		}
})(jQuery);


//Inst Plugin
$(document).ready(function () {
	$('.form-class-name').captcha();
});
</script>