$('a.target_link').click(function() {
if ( this.href != location.href ) {
if( typeof window.history.pushState != undefined ) {
history.pushState( null, null, this.href );
}
$.ajax({
method : 'get',
url : this.href,
success : function( response ){
$('#content').html( response );
}
});
}
return false;
});