var rotate_delay = 3000; // delay in milliseconds (5000 = 5 secs)
current = 0;
function next() {
if (document.aspnetForm.slide[current+1]) {
    document.images.show.src = document.aspnetForm.slide[current + 1].value;
    document.getElementById("ctl00_MainContent_ctlSlideshow_lblImageCaption").innerText = document.aspnetForm.slide[current+1].text;
    document.aspnetForm.slide.selectedIndex = ++current;
   }
else first();
}
function previous() {
if (current-1 >= 0) {
    document.images.show.src = document.aspnetForm.slide[current - 1].value;
    document.getElementById("ctl00_MainContent_ctlSlideshow_lblImageCaption").innerText = document.aspnetForm.slide[current - 1].text;
document.aspnetForm.slide.selectedIndex = --current;
   }
else last();
}
function first() {
current = 0;
document.images.show.src = document.aspnetForm.slide[0].value;
document.getElementById("ctl00_MainContent_ctlSlideshow_lblImageCaption").innerText = document.aspnetForm.slide[0].text;
document.aspnetForm.slide.selectedIndex = 0;
}
function last() {
current = document.aspnetForm.slide.length-1;
document.images.show.src = document.aspnetForm.slide[current].value;
document.getElementById("ctl00_MainContent_ctlSlideshow_lblImageCaption").innerText = document.aspnetForm.slide[current].text;
document.aspnetForm.slide.selectedIndex = current;
}
function ap(text) {
document.aspnetForm.slidebutton.value = (text == "Stop") ? "Start Slideshow" : "Stop";
rotate();
}
function rotate() {
if (document.aspnetForm.slidebutton.value == "Stop") {
current = (current == document.aspnetForm.slide.length-1) ? 0 : current+1;
document.images.show.src = document.aspnetForm.slide[current].value;
document.aspnetForm.slide.selectedIndex = current;
document.getElementById("ctl00_MainContent_ctlSlideshow_lblImageCaption").innerText = document.aspnetForm.slide[current].text;
window.setTimeout("rotate()", rotate_delay);
   }
}