function swap_couche(couche){
	
	if (MM_findObj('ss_menu_' + couche).style.display != 'block') {
		all_off();
		MM_findObj('menu_' + couche).style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
		MM_findObj('ss_menu_' + couche).style.display = 'block';
		MM_findObj('lnk_' + couche).style.color = 'white';
	} else {
		MM_findObj('ss_menu_' + couche).style.display = 'none';
	}
}
function all_off() {
	MM_findObj('ss_menu_entreprise').style.display = 'none';
	MM_findObj('menu_entreprise').style.background = 'white none';
	MM_findObj('lnk_entreprise').style.color = '#D27347';
	
	MM_findObj('ss_menu_espace_clients').style.display = 'none';
	MM_findObj('menu_espace_clients').style.background = 'white none';
	MM_findObj('lnk_espace_clients').style.color = '#D27347';
	
	MM_findObj('ss_menu_ou_laver').style.display = 'none';
	MM_findObj('menu_ou_laver').style.background = 'white none';
	MM_findObj('lnk_ou_laver').style.color = '#D27347';
	
	MM_findObj('ss_menu_lavage_interieur').style.display = 'none';
	MM_findObj('menu_lavage_interieur').style.background = 'white none';
	MM_findObj('lnk_lavage_interieur').style.color = '#D27347';
	
	MM_findObj('ss_menu_lavage_exterieur').style.display = 'none';
	MM_findObj('menu_lavage_exterieur').style.background = 'white none';
	MM_findObj('lnk_lavage_exterieur').style.color = '#D27347';
	
	MM_findObj('ss_menu_contact').style.display = 'none';
	MM_findObj('menu_contact').style.background = 'white none';
	MM_findObj('lnk_contact').style.color = '#D27347';
}
function all_on() {
	MM_findObj('ss_menu_entreprise').style.display = 'block';
	MM_findObj('menu_entreprise').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_entreprise').style.color = 'white';
	
	MM_findObj('ss_menu_espace_clients').style.display = 'block';
	MM_findObj('menu_espace_clients').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_espace_clients').style.color = 'white';
	
	MM_findObj('ss_menu_ou_laver').style.display = 'block';
	MM_findObj('menu_ou_laver').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_ou_laver').style.color = 'white';
	
	MM_findObj('ss_menu_lavage_interieur').style.display = 'block';
	MM_findObj('menu_lavage_interieur').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_lavage_interieur').style.color = 'white';
	
	MM_findObj('ss_menu_lavage_exterieur').style.display = 'block';
	MM_findObj('menu_lavage_exterieur').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_lavage_exterieur').style.color = 'white';
	
	MM_findObj('ss_menu_contact').style.display = 'block';
	MM_findObj('menu_contact').style.background = 'transparent url(img/motif_bleu_fonce.gif) repeat 0% 0%';
	MM_findObj('lnk_contact').style.color = 'white';
}