lubimy czytać nie lubimy minifkować kodu js i nazywac normalnie zmiennych

        function drawStageForWelcomeScreen() {
            sas_idmnet.iLog("WELCOME SCREEN --- call drawStageForWelcomeScreen()");
            sas_idmnet.iLog("WELCOME SCREEN --- " + placement + " ready welcome_screenLayer");
            const ad = document.createElement("div");
            ad.setAttribute("id", "welcome_screenLayer");
            document.body.appendChild(ad);
            let napisReklama;
            if (navigator.languages && navigator.languages[0] === 'pl-PL') {
                napisReklama = 'REKLAMA';
                napisOdliczanie_1 = 'Przekierowanie za ';
                napisOdliczanie_2 = 'sekund';
                napisPrzejdz = 'Przejdź teraz'
            } else {
                napisReklama = 'ADVERTISEMENT';
                napisOdliczanie_1 = 'Closing Ad in ';
                napisOdliczanie_2 = 'seconds';
                napisPrzejdz = 'Close Ad'
            }
            if (placement === "welcome_screen") {
                const belka = document.createElement("div");
                belka.setAttribute("id", "belka_content");
                belka.setAttribute("class", "top-bar");
                belka.innerHTML = '<img src="' + logo + '" alt="Logo" style="height: 30px;">\
                <div class="info" style="font-size: 14px;color: #555;">\
                    ' + napisReklama + ': ' + napisOdliczanie_1 + ' <span id="counter15"></span> ' + napisOdliczanie_2 + '\
                </div>\
                <div class="btn" id="welcomeScreenCB" style="box-shadow: 0 2px 10px rgba(0,0,0,0.2); cursor: pointer;background: white;color: #a4a4a4; padding: 1rem 1rem;border-radius: 4px;border: 1px solid #a4a4a4;text-decoration: none;font-size: 14px;">' + napisPrzejdz + '</div>\
                ';
                const additionalStyles = document.createElement("style");
                additionalStyles.innerHTML = '#belka_content .clickable{ color: #0070f3 !important; border: 1px solid #0070f3 !important; } .btn.clickable:hover { background-color: #005ac1; color: white; cursor: pointer; } ';
                const headzik = document.getElementsByTagName('head')[0];
                headzik.appendChild(additionalStyles);
                ad.appendChild(belka);