var rotate_delay = 3000; // delay in milliseconds (5000 = 5 secs)
current = 0;
function next() {
if (document.getElementById('Form1').slide[current+1]) {
    //document.getElementById("MainContent_MainContent_ctlSlideshow_imgSlideshowImage").src = document.getElementById('Form1').slide[current + 1].value;
    crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[current + 1].value, '1', 'cc', document.getElementById('Form1').slide[current + 1].text)
    document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[current + 1].text;
    document.getElementById('Form1').slide.selectedIndex = ++current;
   }
else first();
}
function previous() {
if (current-1 >= 0) {
  //  document.images.show.src = document.getElementById('Form1').slide[current - 1].value;
    crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[current -1].value, '1', 'cc', document.getElementById('Form1').slide[current -1].text)
    document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[current - 1].text;
    document.getElementById('Form1').slide.selectedIndex = --current;
   }
else last();
}
function first() {
current = 0;
//document.getElementById("MainContent_MainContent_ctlSlideshow_imgSlideshowImage").src = document.getElementById('Form1').slide[0].value;
crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[0].value, '1', 'cc', document.getElementById('Form1').slide[0].text)
document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[0].text;
document.getElementById('Form1').slide.selectedIndex = 0;
}
function last() {
    current = document.getElementById('Form1').slide.length - 1;
    // document.getElementById("MainContent_MainContent_ctlSlideshow_imgSlideshowImage").src = document.getElementById('Form1').slide[current].value;
    crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[current].value, '1', 'cc', document.getElementById('Form1').slide[current].text)
    document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[current].text;
    document.getElementById('Form1').slide.selectedIndex = current;
}
function ap(text) {
    document.getElementById('Form1').slidebutton.value = (text == "Stop") ? "Start Slideshow" : "Stop";
rotate();
}
function rotate() {
    if (document.getElementById('Form1').slidebutton.value == "Stop") {
        current = (current == document.getElementById('Form1').slide.length - 1) ? 0 : current + 1;
        // document.getElementById("MainContent_MainContent_ctlSlideshow_imgSlideshowImage").src = document.getElementById('Form1').slide[current].value;
        crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[current].value, '1', 'cc', document.getElementById('Form1').slide[current].text)
        document.getElementById('Form1').slide.selectedIndex = current;
        document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[current].text;
window.setTimeout("rotate()", rotate_delay);
   }
}
function imageClicked(imageNumber) {
    current = imageNumber;
    /// document.getElementById("MainContent_MainContent_ctlSlideshow_imgSlideshowImage").src = document.getElementById('Form1').slide[current].value;
    crosswipe(document.getElementById('MainContent_MainContent_ctlSlideshow_imgSlideshowImage'), document.getElementById('Form1').slide[current].value, '1', 'cc', document.getElementById('Form1').slide[current].text)
    document.getElementById('Form1').slide.selectedIndex = current;
    document.getElementById("MainContent_MainContent_ctlSlideshow_lblImageCaption").innerText = document.getElementById('Form1').slide[current].text;
}




/*******************************************************************************
IXW1.11 :: Image cross-wipe 
------------------------------------------------------------------------------
Copyright (c) 2004 James Edwards (brothercake)          <cake@brothercake.com>
BSD License                          See license.txt for licensing information
Info/Docs       http://www.brothercake.com/site/resources/scripts/transitions/
------------------------------------------------------------------------------
*******************************************************************************/
//global object
var ixw = { 'clock': null, 'count': 1 }

//crosswipe setup function
function crosswipe() {
    //if the timer is not already going
    if (ixw.clock == null) {
        //copy the image object 
        ixw.obj = arguments[0];

        //get its dimensions
        ixw.size = { 'w': ixw.obj.width, 'h': ixw.obj.height };

        //copy the image src argument 
        ixw.src = arguments[1];

        //change the image alt text if defined
        if (typeof arguments[4] != 'undefined' && arguments[4] != '') {
            ixw.obj.alt = arguments[4];
        }

        //if dynamic element creation is supported
        if (typeof document.createElementNS != 'undefined' || typeof document.createElement != 'undefined') {
            //create a new image object and append it to body
            //detecting support for namespaced element creation, in case we're in the XML DOM
            ixw.newimg = document.getElementsByTagName('body')[0].appendChild((typeof document.createElementNS != 'undefined') ? document.createElementNS('http://www.w3.org/1999/xhtml', 'img') : document.createElement('img'));

            //set positioning classname
            ixw.newimg.className = 'idupe';

            //set src to new image src
            ixw.newimg.src = ixw.src

            //move it to superimpose original image
            ixw.newimg.style.left = ixw.getRealPosition(ixw.obj, 'x') + 'px';
            ixw.newimg.style.top = ixw.getRealPosition(ixw.obj, 'y') + 'px';

            //set it to be completely hidden with clip
            ixw.newimg.style.clip = 'rect(0, 0, 0, 0)';

            //show the image 
            ixw.newimg.style.visibility = 'visible';

            //copy and convert fade duration argument 
            ixw.length = parseInt(arguments[2], 10) * 1000;

            //create fade resolution argument as 20 steps per transition
            ixw.resolution = parseInt(arguments[2], 10) * 20;

            //copy slide direction argument
            ixw.dir = arguments[3];

            //start the timer
            ixw.clock = setInterval('ixw.crosswipe()', ixw.length / ixw.resolution);
        }

        //otherwise if dynamic element creation is not supported
        else {
            //just do the image swap
            ixw.obj.src = ixw.src;
        }

    }
};


//crosswipe timer function
ixw.crosswipe = function() {
    //decrease the counter on a linear scale
    ixw.count -= (1 / ixw.resolution);

    //if the counter has reached the bottom
    if (ixw.count < (1 / ixw.resolution)) {
        //clear the timer
        clearInterval(ixw.clock);
        ixw.clock = null;

        //reset the counter
        ixw.count = 1;

        //set the original image to the src of the new image
        ixw.obj.src = ixw.src;
    }

    //animate the clip of the new image
    //using the width and height properties we saved earlier
    ixw.newimg.style.clip = 'rect('
		+ ((/bt|bltr|brtl/.test(ixw.dir)) ? (ixw.size.h * ixw.count) : (/che|cc/.test(ixw.dir)) ? ((ixw.size.h * ixw.count) / 2) : (0))
		+ 'px, '
		+ ((/lr|tlbr|bltr/.test(ixw.dir)) ? (ixw.size.w - (ixw.size.w * ixw.count)) : (/cve|cc/.test(ixw.dir)) ? (ixw.size.w - ((ixw.size.w * ixw.count) / 2)) : (ixw.size.w))
		+ 'px, '
		+ ((/tb|tlbr|trbl/.test(ixw.dir)) ? (ixw.size.h - (ixw.size.h * ixw.count)) : (/che|cc/.test(ixw.dir)) ? (ixw.size.h - ((ixw.size.h * ixw.count) / 2)) : (ixw.size.h))
		+ 'px, '
		+ ((/lr|tlbr|bltr/.test(ixw.dir)) ? (0) : (/tb|bt|che/.test(ixw.dir)) ? (0) : (/cve|cc/.test(ixw.dir)) ? ((ixw.size.w * ixw.count) / 2) : (ixw.size.w * ixw.count))
		+ 'px)';

    //keep new image in position with original image
    //in case text size changes mid transition or something
    ixw.newimg.style.left = ixw.getRealPosition(ixw.obj, 'x') + 'px';
    ixw.newimg.style.top = ixw.getRealPosition(ixw.obj, 'y') + 'px';

    //if the counter is at the top, which is just after the timer has finished
    if (ixw.count == 1) {
        //remove the duplicate image
        ixw.newimg.parentNode.removeChild(ixw.newimg);
    }
};

//get real position method
ixw.getRealPosition = function() {
    this.pos = (arguments[1] == 'x') ? arguments[0].offsetLeft : arguments[0].offsetTop;
    this.tmp = arguments[0].offsetParent;
    while (this.tmp != null) {
        this.pos += (arguments[1] == 'x') ? this.tmp.offsetLeft : this.tmp.offsetTop;
        this.tmp = this.tmp.offsetParent;
    }

    return this.pos;
};