var setCookie = function (n, val) {
  var exdays = 30;
  var d = new Date();
  d.setTime(1932403882999);
  var expires = "expires=" + d.toGMTString();
  document.cookie = n + "=" + val + "; " + expires;

};

document.onclick = function (e) {
  if (e.target.className == 'click') {
      var bg =   document.getElementById('bdy').style.filter='invert(1)';
      setCookie('color', bg);
  
}
};



function getcolor() {

  console.log(getCookie("color"));
  if(getCookie("color") != ""){
      setCookie('color', getCookie("color"));
      document.body.style.filter = getCookie("color");
  }
  
};