diff --git a/add_asset.html b/add_asset.html
index f4800f2..8c76039 100644
--- a/add_asset.html
+++ b/add_asset.html
@@ -206,7 +206,7 @@
 				name="credit_account"
 				label="Compte de décaissement"
 				required=true
-				target="!acc/charts/accounts/selector.php?types=%s&id_year=%d"|args:"1|2|3":$selected_year
+				target="!acc/charts/accounts/selector.php?types=%s&id_year=%d"|args:"1|2|3|4":$selected_year
 			}}
 			{{:input
 				type="list"
diff --git a/modify_infos.html b/modify_infos.html
index 2016a52..edd3c92 100644
--- a/modify_infos.html
+++ b/modify_infos.html
@@ -2,16 +2,15 @@
 {{:admin_header title="Modifier l'immobilisation" custom_css="./style.css" current="module_amortization"}}
 
 {{*
-	@param immo_line_id
 	@param immo_doc_id
 	¿ @param type_immo : managed, amortized, archived, other ?
 
 	TODO :
-		- ¿ faire une ligne modifiable pour chaque avoir avec un bouton de suppression ?
 		- séparer les cas des immo simples et complexes (BOI)
 		  par exemple pour la durée d'amort par défaut {{:input ...}}
 		- prise en charge immo => param = immo_line_id
 		- modif param immo => param = immo_doc_id
+		- DONE possibilité supprimer liaison écriture avoir
 *}}
 
 {{* données de l'immobilisation *}}
@@ -61,7 +60,7 @@
 		{{:assign credit=$credit}}
 		{{:assign credit_trans_id=$id}}
 	{{/select}}
-	{{:assign var="linked_immos." value=$credit_trans_id}}
+	{{:assign var="linked_immos." doc=$id trans=$credit_trans_id}}
 	{{if $amount == null}}
 		{{:assign total_credits="%d+%d"|math:$total_credits:$credit}}
 	{{else}}
@@ -146,6 +145,44 @@
 		{{:assign status="managed"}}
 	{{/if}}
 
+	{{* écritures de crédit *}}
+	{{#foreach from=$linked_immos item="elem"}}
+		{{if ! $_POST.credit_id|has:$elem.trans}}
+			{{:assign var="docs_to_remove." value=$elem.doc}}
+			{{:assign var="links_to_remove." value=$elem.trans}}
+		{{/if}}
+	{{/foreach}}
+
+	{{if $docs_to_remove != null}}
+		{{:assign remove_set=$docs_to_remove|implode:","}}
+		{{:assign remove_set="("|cat:$remove_set|cat:")"}}
+		{{:delete where="id IN %s"|args:$remove_set}}
+
+		{{* idem avec acc_transactions_links *}}
+		{{#select
+			CASE links.id_related = :immo_trans_id
+				WHEN true THEN links.id_transaction
+				WHEN false THEN links.id_related
+			END as linked_id
+			FROM acc_transactions_links as links
+			WHERE id_transaction = :immo_trans_id or id_related = :immo_trans_id;
+			:immo_trans_id = $ligne_immo.immo_trans_id
+			}}
+			{{if ! $linked_id|in:$links_to_remove}}
+				{{:assign var="linked_transactions." value=$linked_id}}
+			{{/if}}
+		{{/select}}
+
+		{{* Enregistrer les liaisons *}}
+		{{:api
+			method="POST"
+			path="accounting/transaction/%s/transactions"|args:$ligne_immo.immo_trans_id
+			assign="result"
+			assign_code="result_code"
+			transactions=$linked_transactions
+		}}
+	{{/if}}
+
 	{{* enregistrer les infos de l'immobilisation *}}
 	{{:save
 		key=$info_immo.key
@@ -167,6 +204,7 @@
 		{{:assign type_immo="other"}}
 	{{/if}}
 	{{:redirect force="index.html?ok=1&msg=infos&type_immo=%s"|args:$type_immo}}
+
 {{/form}}
 {{:form_errors}}
 
@@ -216,14 +254,14 @@
 				{{/if}}
 				{{:input type="date" name="date_achat" label="Date d'acquisition" default=$info_immo.date_achat}}
 				{{:input type="date" name="date_mes" label="Date de mise en service" default=$info_immo.date_mes}}
-				{{if $linked_immos}}
+				{{if $linked_immos != null}}
 					<dt><label>Écritures d'avoir liées à l'immobilisation</label></dt>
 					<dd>
 						<span class="input-list avoirs">
 							<label for="credit_id">Écritures&nbsp;:</label>
-							{{#foreach from=$linked_immos item="id"}}
+							{{#foreach from=$linked_immos item="elem"}}
 								<span class="label">
-									{{:input type="hidden" name="credit_id" value=$id}}{{$id}}
+									<input type="hidden" name="credit_id[]" value="{{$elem.trans}}">{{$elem.trans}}
 									<button data-icon="✘" type="button" class=" icn-btn" title="Cliquer pour supprimer la liaison"></button>
 								</span>
 							{{/foreach}}