function preloadAndSwitch(idImg, idLink, newData) {
const img = document.getElementById(idImg);
const link = document.getElementById(idLink);
const temp = new Image();
temp.onload = function () {
img.style.opacity = 0;
setTimeout(() => {
img.src = newData.src;
link.href = newData.link;
img.style.opacity = 1;
}, 100); // opsiyonel: animasyon senkronu
};
temp.src = newData.src;
}
// Üst slider
setInterval(() => {
topIndex = (topIndex + 1) % topImages.length;
preloadAndSwitch('slider-img-top', 'slider-link-top', topImages[topIndex]);
}, 5000);
// Alt slider
setInterval(() => {
bottomIndex = (bottomIndex + 1) % bottomImages.length;
preloadAndSwitch('slider-img-bottom', 'slider-link-bottom', bottomImages[bottomIndex]);
}, 6500);