function toogle_investor()	{
	if(document.getElementById('investor').style.display == 'none')	{
		document.getElementById('investor').style.display = 'block';
	}
 	else	{
		document.getElementById('investor').style.display = 'none';
	}
	
	if (document.getElementById('presse').style.display == 'block')	{
		document.getElementById('presse').style.display = 'none';
	}
}

function toogle_presse()	{
	if(document.getElementById('presse').style.display == 'none')	{
		document.getElementById('presse').style.display = 'block';
	}
 	else	{
		document.getElementById('presse').style.display = 'none';
	}
	
	if (document.getElementById('investor').style.display == 'block')	{
		document.getElementById('investor').style.display = 'none';
	}
}