setInterval(function () {
                    for (var i = 1; i <= 7; i++) {
                        ajaxRequestTomcat(i);
                    }
                }, 3000);


                var scroll = scrollFunc();
                function scrollFunc() {
                   return setInterval(function() {autoScroll()}, 5000);
                }
                function autoScroll() {
                    for (var x = 1; x < 8; x++) {
                        var textarea = document.getElementById("tomcatlog" + x);
                        textarea.scrollTop = textarea.scrollHeight;
                    }
                }

                document.getElementById("scroll").addEventListener("click", function() {
                    currentValue = document.getElementById("scroll").value;
                    color = document.getElementById("scroll");
                    if (currentValue == "On") {
                        color.style.backgroundColor = "#008000";
                        scroll = scrollFunc();
                        console.log(scroll)
                        document.getElementById("scroll").value = "Off";
                    } else {
                        color.style.backgroundColor = "#B22222";
                        console.log(scroll)
                        clearInterval(scroll);
                        console.log(scroll)
                        document.getElementById("scroll").value = "On";
                    }
                });