function hide_couple(){
	document.getElementById('birthh').style.display='none';
	document.getElementById('birthf').innerHTML='';
}
function show_couple(){
	document.getElementById('birthf').innerHTML='<span class="fs_normal">Elle&nbsp;</span>';
	document.getElementById('birthh').style.display='inline';
}
function show_state(val){
	document.getElementById('the_states').style.display='none';
	document.getElementById('state_be').style.display='none';
	document.getElementById('state_ca').style.display='none';
	document.getElementById('state_fr').style.display='none';
	switch(val){
		//belgique
		case "17":
			document.getElementById('state_be').style.display='inline';
			document.getElementById('the_states').style.display='inline';
		break;
		//canada
		case "30":
			document.getElementById('state_ca').style.display='inline';
			document.getElementById('the_states').style.display='inline';
		break;
		//france
		case "54":
			document.getElementById('state_fr').style.display='inline';
			document.getElementById('the_states').style.display='inline';
		break;
	}
}