var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if(n > slides.length) {
slideIndex = 1
}
if(n < 1) {
slideIndex = slides.length
}
for(i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
}