create a default controller called 'default' in default create a function called index in index view include two file called nav.html ( include 'default/ nav.html') and navi.html( or a arbitrary filename) ( include 'default/ navi.html') with some arbitrary content or keep it empty
then checkout the difference between the two in your html output in browser it will produce a strange symbol (something like a line break) here is some screen shot test in google chrome https://sites.google.com/site/jamalmvc/images/g0.jpg https://sites.google.com/site/jamalmvc/images/g1.jpg test in ie https://sites.google.com/site/jamalmvc/images/i0.jpg test in firefox https://sites.google.com/site/jamalmvc/images/f0.jpg https://sites.google.com/site/jamalmvc/images/f1.jpg