Next and Back Button not working

[Zaeta25]

I have the following code from another website, its working fine there, but when I want to use it in another place I have an error about SCRIPT5009: 'swapImage' is undefined


Code:

<img width="100%" height="100%" id="mainImage" style="border: 1px solid black; border-image: none;" alt="" src="/services/PublishingImages/Slideshow/Slide1.JPG">

<script type="text/javascript">
            // <![CDATA[
            var currentIndex = 1;

            //*********NOTE: Set this value to the number of slides you have in the presentation.
            var maxIndex = 17;

            function swapImage(imageIndex) {
                if (imageIndex > maxIndex) {
                    currentIndex = maxIndex;
                    return;
                }

                if (imageIndex < 1) {
                    currentIndex = 1;
                    return;
                }

                currentIndex = imageIndex;
                document.getElementById("mainImage").src = '/services/PublishingImages/Slideshow/Slide' + currentIndex + '.JPG';
                return;
            }
        </script>

Any Suggestion it will be appreciated.

Thanks

[gits]

what does 'in another place' mean exactly in your case? the error indicates that the method you want to call isnt found in that scope - so it would be better to see more of the code or an online testcase.