function afficheTransaction(id) {
	
	if(id == 'location_vide' || id == 'location_meublee')
		id = 'location';
		
	f = document.devis_form;
	
	document.getElementById('vente').style.display = 'none';
	document.getElementById('location').style.display = 'none';
	if(id !== null)
		document.getElementById(id).style.display = 'block';
		
	if(id == 'location') {
		f.postalcode_vente.value = '';
		f.copropriete[0].checked = '';
		f.copropriete[1].checked = '';
		f.construction_vente[0].checked = '';
		f.construction_vente[1].checked = '';
		f.permis_construire[0].checked = '';
		f.permis_construire[1].checked = '';
		f.electrique[0].checked = '';
		f.electrique[1].checked = '';
		f.gaz[0].checked = '';
		f.gaz[1].checked = '';
		afficheVente(id);
	}
	if(id == 'vente') {
		f.postalcode_location.value = '';
		f.construction_location[0].checked = '';
		f.construction_location[1].checked = '';
	}
}

var iv = null;

function afficheVente(iv) {
	
	document.getElementById('avant1949').style.display = 'none';
	document.getElementById('apres1949').style.display = 'none';
	if(iv !== null)
		document.getElementById(iv).style.display = 'block';
		
	f.permis_construire[0].checked = '';
	f.permis_construire[1].checked = '';
	f.electrique[0].checked = '';
	f.electrique[1].checked = '';
	f.gaz[0].checked = '';
	f.gaz[1].checked = '';

}

var ia = null;

function afficheDate(ia) {
	
	f = document.devis_form;
	
	document.getElementById('avant1949').style.display = 'none';
	if(ia !== null)
		document.getElementById(ia).style.display = 'block';
		
	if(ia == 'apres1949') {
		f.electrique[0].checked = '';
		f.electrique[1].checked = '';
		f.gaz[0].checked = '';
		f.gaz[1].checked = '';
	}
}

var di = null;

function definition(di) {
	document.getElementById(di).style.display = 'block';
}