var rotate_delay = 5000;
                    current = 0;
                    function next() {
                    if (document.slideform.slide[current+1]) {
                    document.images.show.src = document.slideform.slide[current+1].value;
                    document.slideform.slide.selectedIndex = ++current;
                       }
                    else first();
                    }
                    function previous() {
                    if (current-1 >= 0) {
                    document.images.show.src = document.slideform.slide[current-1].value;
                    document.slideform.slide.selectedIndex = --current;
                       }
                    else last();
                    }
                    function first() {
                    current = 0;
                    document.images.show.src = document.slideform.slide[0].value;
                    document.slideform.slide.selectedIndex = 0;
                    }
                    function last() {
                    current = document.slideform.slide.length-1;
                    document.images.show.src = document.slideform.slide[current].value;
                    document.slideform.slide.selectedIndex = current;
                    }
                    function ap(text) {
                    document.slideform.slidebutton.value = (text == "Stop") ? "Start" : "Stop";
                    rotate();
                    }
                    function change() {
                    current = document.slideform.slide.selectedIndex;
                    document.images.show.src = document.slideform.slide[current].value;
                    }
                    function rotate() {
                    if (document.slideform.slidebutton.value == "Stop") {
                    current = (current == document.slideform.slide.length-1) ? 0 : current+1;
                    document.images.show.src = document.slideform.slide[current].value;
                    document.slideform.slide.selectedIndex = current;
                    window.setTimeout("rotate()", rotate_delay);
                       }
                    }