$(document).ready(function() {
	$('.navigation_home').html('<div class="main_navigation first" >Home</div>');
	$('.navigation_productivity').html('<div class="main_navigation" >Leistungen</div>');
	$('.navigation_projects').html('<div class="main_navigation" >Projekte</div>');
	$('.navigation_jobs').html('<div class="main_navigation" >Karriere</div>');
	$('.navigation_contact').html('<div class="main_navigation last" >Kontakt</div>');

	/**
	 * topic to right;
	 */
});