function hide_trans(show){
	if(show != 'navi_1'){ document.getElementById('navi_1').className=''; }
	if(show != 'navi_2'){ document.getElementById('navi_2').className=''; }
	if(show != 'navi_3'){ document.getElementById('navi_3').className=''; }
	if(show != 'navi_4'){ document.getElementById('navi_4').className=''; }
	if(show != 'navi_5'){ document.getElementById('navi_5').className=''; }
	if(show != 'navi_6'){ document.getElementById('navi_6').className=''; }
	if(show != 'navi_7'){ document.getElementById('navi_7').className=''; }
		document.getElementById(show).className='main_navi_visit';
}

function show_sub(subm){
	if(subm != 'sn_it2rhine'){ document.getElementById('sn_it2rhine').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_partner'){ document.getElementById('sn_partner').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_ziele'){ document.getElementById('sn_ziele').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_aufgaben'){ document.getElementById('sn_aufgaben').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_aktuelles'){ document.getElementById('sn_aktuelles').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_showcase'){ document.getElementById('sn_showcase').style.display='none'; document.getElementById(subm).style.display='block'; }
	if(subm != 'sn_presse'){ document.getElementById('sn_presse').style.display='none'; document.getElementById(subm).style.display='block'; }
}