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var myWidgets = myWidgets || {};

// Model for a single testimonial
myWidgets.Testimonial = Backbone.Model.extend({
  defaults: { 'quote':  '', 'author': '' }
});

// Single view, responsible for rendering and manipulation of each single testimonial
myWidgets.TestimonialView = Backbone.View.extend( {

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<?php //Add all of this tu custom page template ?>
<?php
        global $wpdb;
        
        $error = '';
        $success = '';
        
        // check if we're in reset form
        if( isset( $_POST['action'] ) && 'reset' == $_POST['action'] ) 
        {

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//Check for Required field and if it empty set to error state 
function setInputToEdit(id){
	var a = document.getElementById(id);
	var b = a.parentNode.getElementsByClassName('error-msg');
	a.parentNode.classList.add('error-input');
}	
//Check is all requred fields have value on fieldset
function passForRequired(input){
	var a = input.context.parentElement, // parent with inputs and selects
	b = true,

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//enable async defer for Google Maps Library
//google_map_api -- name of before registred script 
<?php
add_filter( 'script_loader_tag', function ( $tag, $handle ) {

	if ( 'google_map_api' !== $handle )
		return $tag;

	return str_replace( ' src', ' async defer src', $tag );
}, 10, 2 );

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//@param input = id of form, string
//@return c = return JSON object
function formDataToJson(input){
	//var a not used before
	var a = document.getElementById(input), 
	b = $(input).serializeArray(),
	c = {};

	for (var i = 0 ; i < b.length; i++) {
		c[b[i].name] = b[i].value;

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/* 
 * FACEBOOK_URL - url from Facebook iframe snippert https://goo.gl/EUcaEn
 *
 */
<iframe id="ifr" data-url="FACEBOOK_URL" width="100%" height="189" style="border:none;overflow:hidden"></iframe>
<script>
$(window).on('load', function() {
				var a = $('#ifr');
				if(a[0].src == ''){
					setTimeout(function() {

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<!-- Google Maps -->
		<script type="text/javascript">

			$(window).on('load', function(){
				setTimeout(function() {		
					var s = document.createElement('script');
					s.type = 'text/javascript';
					s.src = 'https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap';
					s.setAttribute('async', 'defer');
					document.getElementsByTagName('footer')[0].appendChild(s);

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// @input string, YouTube video url
// @return string, YouTube video ID
function getVideoId(input) {
		return input.match(/(?:youtu\.be\/|youtube\.com(?:\/embed\/|\/v\/|\/watch\?v=|\/user\/\S+|\/ytscreeningroom\?v=|\/sandalsResorts#\w\/\w\/.*\/))([^\/&]{10,12})/)[1]; 
	}

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/*
 *$str - string to change
 *
 *
 */
function camelCase($str, array $noStrip = [])
{
        // non-alpha and non-numeric characters become spaces
        $str = preg_replace('/[^a-z0-9' . implode("", $noStrip) . ']+/i', ' ', $str);
        $str = trim($str);

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<script type="text/javascript">
  $(window).on('mousewheel', function(e){
    var delta = e.originalEvent.detail < 0 || e.originalEvent.wheelDelta > 0 ? 1 : -1;
    if (delta < 0){
      console.log('down');
    } else{
      console.log('up');
    }
  })
</script>