window.onload = function() {
let headerMenuLink = document.getElementsByClassName("header-menu__link");
for(let i = 0; i < headerMenuLink.length; i++) {
headerMenuLink[i].addEventListener("click", function() {
if(headerMenuLink[i].classList.contains("active")) {
headerMenuLink[i].classList.remove("active");
}
this.classList.add("active");
});
}
}