// JavaScript Document

toggleState = 'On'; // track state of toggle

                                                function exchange() {

                                                

                                                                //variables

                                                                var Here = document.getElementById('example');

                                                                

                                                                var Message = document.getElementById('message');

                                                                

                                                                

                                                                //change button

                                                                if (Here) {

                                                                if (toggleState == 'On'){

                                                                toggleState = 'Off'

 

                                                                Here.innerHTML = 'The spacing required for surface mount installation. <br />Select <a id="Here" href="javascript:exchange()">here</a> for surface mount installation.';

                                                                //change image

                                                                Message.innerHTML = '<img src="http://www.flipworks.com/images/380/dimensions_side_.jpg" alt="Flipworks 380 Series Dimensions" width="728" height="304" id="Message" />';

                                                                

                                                                }

                else {                                                                                     

                                                                toggleState = 'On'

 

                                                                Here.innerHTML = 'The spacing required for surface mount installation. <br />Select <a id="Here" href="javascript:exchange()">here</a> for side mount installation. ';

                                                                //change image

                                                                Message.innerHTML = '<img src="http://www.flipworks.com/images/380/dimensions_surf_.jpg" alt="Flipworks 380 Series Dimensions" width="728" height="304" id="Message" />';

                                                                

                                                                }

                                                                

                                                                }

                                                                                                                                

                                                }