WKSlider - Usage First, include the main JavaScript file and CSS stylesheet in the header of your HTML document: <link rel="stylesheet" href="WKSlider.css" /> <script type="text/javascript" src="WKSlider.js" ></script> Next, insert the following markup into your HTML for the slider: <div id="mySlider1" class="slider"> <div class="track"></div> <div class="knob"></div> </div> Finally, initialize the plugin by including the following JavaScript just before the end </body> tag in your HTML. Put your own code within the callback() method for what you want to happen when the slider is moved. The callback() method by default returns a variable that contains percentage (0 to 100). <script type="text/javascript"> window.onload = function() { //slider 1 var mySlider1 = new WKSlider('mySlider1'); //slider 1 callback mySlider1.callback = function (percentage) { document.getElementById('mySlider1-output').innerHTML = percentage; } }; </script>