function scrolled(head) {

	var alt = window.innerHeight * 0.70;

	if (window.pageYOffset >= alt)
	{
		head.className = 'header';

	} else
	{
		head.className = 'novis';
	};

}


function scrolled(head) {

var alt = window.innerHeight * 0.70;

if (window.pageYOffset >= alt)
{
	head.className = 'header';

} else
{
	head.className = 'novis';
};

}


function cgtxt (num){
var indice;
var txt = document.getElementById('review_body');
var nm = document.getElementById('review_name');
var plc = document.getElementById('review_from');

txt.style.opacity = 0;
nm.style.opacity = 0;
plc.style.opacity = 0;
for (var i = 0; i<text.length; i++ ){
	if (txt.textContent == text[i]){
		indice = i;
	};
};

var pas = text.length - 1;


if (num == 1){
	if (indice == pas ){
		indice = 0;
	} else  {
		indice +=1;
	}


} else {

	if (indice == 0 ) {
		indice = pas;
	} else {
		indice-= 1;
	}

}

setTimeout ( function () {




nm.style.opacity = 1;
	plc.style.opacity = 1;
	nm.textContent = names[indice];
	plc.textContent = place[indice];


setTimeout ( function () {

	txt.style.opacity = 1;


txt.textContent = text[indice];

}, 400
)

}, 400
)


}




var head = document.getElementById('header');
scrolled(head);

/*
var elements = document.getElementsByTagName('a');
for (var i = 0; i < 4; i++){
	element[i].className = 'green';
} */

window.addEventListener('scroll', function () { scrolled(head) });