CODE SA INDEX.PHP
------------------------------------------------
<html>
<head><title></title>
</head>
<body>
<?
//determine if we have GET value
if ($_GET['page']=="") {
        echo "Welcome to index page!";
} else {
        //include("goma.php");
        include("$_GET[page].php"); //will substitute any values from var 'page' e.g. ?page=xxx -> include("xxx.php")
}
?>
</body>
</html>

CODE SA BAYOTSIGOMA.PHP
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<div class="content">
<?="You are in goma page!" ?>
</div>