javascript paste

(() => main())()var gamevar Cfunction main() {	game = document.getElementsByTagName('game')[0]	game.addEventListener('click', handle_buttons)	addEventListener('hashchange', set_current)  set_current()}function remove_current() {  Array.from(game.getElementsByClassName('current')).forEach(e => e.classList.remove('current'))}function goto_tag(tag) {  if (tag == null) {return}  let P = document.getElementById(tag)  if (P) {    remove_current()    P.classList.add('current')    document.location.hash = tag  } else {    console.log(`Tag ${tag} not found.`)  }}function set_current(event) {	let pages = document.getElementsByTagName('page')  remove_current()	if (document.location.hash && document.location.hash.slice(1) in pages) {	  pages[document.location.hash.slice(1)].classList.add('current')	} else {	  pages[0].classList.add('current')	}}function handle_buttons(event) {  goto_tag(event.target.getAttribute('page'))}