function preservation(text){
	var tab1 = new String('azertyuiopmlkjhgfdsqwxcvbn@-_.<>"=:/ ');
	text = new String(text);
	for(var i = 0; i < text.length / 2; i++){
		if(text.charAt(i) == 0){
			document.write(tab1.charAt(text.charAt(text.length - i - 1)));
		} else {
			document.write(tab1.charAt(text.charAt(i) + text.charAt(text.length - i - 1)));
		}
	}
}

function change_aff(div){
	if(document.getElementById(div).style.display == 'none'){
		document.getElementById(div).style.display = 'block';
		document.getElementById('a_' + div).innerHTML = '^ R&eacute;duire';
	} else {
		document.getElementById(div).style.display = 'none';

		switch(div)
		{
			case 'formation_more':
				document.getElementById('a_' + div).innerHTML = 'Voir les &eacute;tablissements ant&eacute;rieurs';	
			break;
			case 'experiences_more':
				document.getElementById('a_' + div).innerHTML = 'Voir les exp&eacute;riences ant&eacute;rieures';	
			break;
		}
	}
}