javascript - How to keep toogleClass() state on page refresh or moving to another HTML subsite? -


i have page couple subpages in .html. on every page there 2 "buttons" language change. there solution, me keep selected language after page refresh or moving subsite?

this code:

    // language icons //   var polico = $('.language_ico_container').find('img').first();   var engico = $('.language_ico_container').find('img').last();    engico.toggleclass('transparency');    function checktransparency() {     engico.click(function () {       $(this).toggleclass('transparency');       if (engico.hasclass('transparency')) {         polico.removeclass('transparency');       } else {         polico.addclass('transparency');       }     });     polico.click(function () {       $(this).toggleclass('transparency');       if (polico.hasclass('transparency')) {         engico.removeclass('transparency');       } else {         engico.addclass('transparency');       }     });   };   // call function checking transparency in language icons //   checktransparency();    // english & polish content selection //   var languagepl = $('.pl');   var languageen = $('.eng');    languageen.toggleclass('hidden');    function changelanguage() {     engico.click(function () {       languageen.toggleclass('hidden');       languagepl.toggleclass('hidden');     });      polico.click(function () {       languageen.toggleclass('hidden');       languagepl.toggleclass('hidden');     });   };   // call function changing content language   changelanguage();

and css classes:

    .hidden {     display: none; }      .transparency {     opacity: 0.5; }

localstorage can solution used save data across browser sessions.. can implement classes session storage, every time set transparency class can add local storage.

localstorage.setitem('class','transparency');

when remove class can remove local storage

 localstorage.removeitem('class');

and when page refreshed can set class localstorage

localstorage.getitem('class');

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