[рони]

sergey24,
примерно так

var _click = function () {
        var b = 1;
        return function (c) {
            var a = document.getElementById("item" + b);
            $('.your-slider', a).slick('reInit');
            c == b && (a.style.display = "none" == a.style.display ? "" : "none");
            c != b && (a.style.display = "none", a = document.getElementById("item" + c), a.style.display = "", b = c)
        }
    	}();
    window.onload = function() {
    	_click(1)
 		}