<script>
$(document).ready(function(){
    $('#stage').load('index.php');
});
</script>

$(document).ready(function(){
    $( '#stage' ).load( 'index.php #content' ); // Fetch the content div in index.php
});

$(document).ready(function(){
    $.get( "index.php", function( data ) {
        $( "#stage" ).html( data );
    });
});

<script>
$(document).ready(function(){
 $("#frame").attr("src", "index.php");
});
</script>

$(document).ready(function(){
    $('#stage').load('index.php');

    $('#stage').on('click', 'a', function(e){
       e.preventDefault();
       alert('clicked');
    });
});

$(staticparent).on(event, selector, callback);