Can your mockup tool do this? Most mockup tools give you a static image with no preview option. Click on the image below (or this link). A new window will open and you will see an interactive mobile prototype that looks very much like the real application. This interactive prototype was created with Tiggr. Tiggr’s Web Preview feature allows you to generate HTML/JS/CSS and preview the prototype in any browser. Go ahead and try it on your mobile phone (http://gotiggr.com/preview/5673/).
Click a button to navigate, click the tabs, use the menu list, toggle the radio button, open/close panels. Just use it as a regular application.