var swiper = undefined;
var winW =  window.innerWidth;
var swiperElement = document.getElementById("slider");
var swiperWrapper = swiperElement.getElementsByClassName("swiper-wrapper");
var swiperSlide = swiperElement.getElementsByClassName("swiper-slide");
var options = {
	loop: true,
		centeredSlides : true,
	pagination: '.swiper-pagination',
	nextButton: '.swiper-button-next',
	prevButton: '.swiper-button-prev',
	breakpoints: {
		991: {
			slidesPerView: 2,
			spaceBetween: 10
		},
		767: {
			slidesPerView: 1,
			spaceBetween: 0
		}
	}
};
function initSwiper() {
	if(swiperElement){
		var screenWidth = window.innerWidth;
		if(screenWidth > 992 && swiper == undefined) { 
			swiper = new Swiper('#slider', options);
		} else if (screenWidth > 991 && swiper != undefined) {
			swiper.destroy();
			swiper = undefined;
			for( var i=0;i<swiperWrapper.length; i++ ) {
				swiperWrapper[i].removeAttribute('style');
			}
			for( var i=0;i<swiperSlide.length; i++ ) {
				swiperSlide[i].removeAttribute('style');
			}
		}
	}
}
initSwiper();

window.addEventListener('resize',initSwiper);