diff --git a/htdocs/adherents/card.php b/htdocs/adherents/card.php
index 0fc3b38c641..2ab8640460b 100644
--- a/htdocs/adherents/card.php
+++ b/htdocs/adherents/card.php
@@ -913,7 +913,7 @@ else
 		{
 			print '<tr><td>' . fieldLabel('Categories', 'memcars') . '</td><td>';
 			$cate_arbo = $form->select_all_categories(Categorie::TYPE_MEMBER, null, 'parent', null, null, 1);
-			print Form::multiselectarray('memcats', $cate_arbo, GETPOST('memcats', 'array'), null, null, null, null, '100%');
+			print $form->multiselectarray('memcats', $cate_arbo, GETPOST('memcats', 'array'), null, null, null, null, '100%');
 			print "</td></tr>";
 		}
 
@@ -1173,7 +1173,7 @@ else
 			foreach ($cats as $cat) {
 				$arrayselected[] = $cat->id;
 			}
-			print Form::multiselectarray('memcats', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
+			print $form->multiselectarray('memcats', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
 			print "</td></tr>";
 		}
 
diff --git a/htdocs/contact/card.php b/htdocs/contact/card.php
index 045bcf6afd3..b1e48a42d50 100644
--- a/htdocs/contact/card.php
+++ b/htdocs/contact/card.php
@@ -662,7 +662,7 @@ else
 			if (! empty($conf->categorie->enabled)  && ! empty($user->rights->categorie->lire)) {
 				print '<tr><td>' . fieldLabel( 'Categories', 'contcats' ) . '</td><td colspan="3">';
 				$cate_arbo = $form->select_all_categories( Categorie::TYPE_CONTACT, null, 'parent', null, null, 1 );
-				print Form::multiselectarray( 'contcats', $cate_arbo, GETPOST( 'contcats', 'array' ), null, null, null,
+				print $form->multiselectarray( 'contcats', $cate_arbo, GETPOST( 'contcats', 'array' ), null, null, null,
 					null, '90%' );
 				print "</td></tr>";
 			}
@@ -922,7 +922,7 @@ else
 				foreach ($cats as $cat) {
 					$arrayselected[] = $cat->id;
 				}
-				print Form::multiselectarray( 'contcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%' );
+				print $form->multiselectarray( 'contcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%' );
 				print "</td></tr>";
 			}
 
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 11bb69bef89..a6161ba4fed 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -4853,7 +4853,7 @@ class Form
      *	@return	string					HTML multiselect string
      *  @see selectarray
      */
-    public static function multiselectarray($htmlname, array $array, array $selected = array(), $key_in_label=0, $value_as_key=0, $morecss='', $translate=0, $width=0, $moreattrib='',$elemtype='')
+    static function multiselectarray($htmlname, $array, $selected=array(), $key_in_label=0, $value_as_key=0, $morecss='', $translate=0, $width=0, $moreattrib='',$elemtype='')
     {
     	global $conf, $langs;
 
diff --git a/htdocs/core/class/html.formactions.class.php b/htdocs/core/class/html.formactions.class.php
index d3189b87d61..0316fb461cf 100644
--- a/htdocs/core/class/html.formactions.class.php
+++ b/htdocs/core/class/html.formactions.class.php
@@ -273,7 +273,7 @@ class FormActions
 		if (! empty($multiselect)) 
 		{
 	        if(!is_array($selected) && !empty($selected)) $selected = explode(',', $selected);
-			print Form::multiselectarray($htmlname, $arraylist, $selected, 0, 0, 'centpercent', 0, 0);
+			print $form->multiselectarray($htmlname, $arraylist, $selected, 0, 0, 'centpercent', 0, 0);
 		}
 		else 
 		{
diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index c5b20cd08bb..63dbe9f3846 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1040,7 +1040,7 @@ else
 			// Categories
 			print '<tr><td>'.$langs->trans("Categories").'</td><td colspan="3">';
 			$cate_arbo = $form->select_all_categories(Categorie::TYPE_PRODUCT, '', 'parent', 64, 0, 1);
-			print Form::multiselectarray('categories', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
+			print $form->multiselectarray('categories', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
 			print "</td></tr>";
 		}
 
@@ -1343,7 +1343,7 @@ else
 				foreach($cats as $cat) {
 					$arrayselected[] = $cat->id;
 				}
-				print Form::multiselectarray('categories', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
+				print $form->multiselectarray('categories', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
 				print "</td></tr>";
 			}
 
diff --git a/htdocs/public/test/test_forms.php b/htdocs/public/test/test_forms.php
index cb30e5129c7..c126a4d0c14 100644
--- a/htdocs/public/test/test_forms.php
+++ b/htdocs/public/test/test_forms.php
@@ -86,7 +86,7 @@ print '<br><br>'."\n";
 print "Test 5c: a multiselect<br>\n";
 $array=array(1=>'Value 1',2=>'Value 2',3=>'Value 3');
 $arrayselected=array(1,3);
-print Form::multiselectarray('testmulti', $array, $arrayselected, '', 0, '', 0, 250);
+print $form->multiselectarray('testmulti', $array, $arrayselected, '', 0, '', 0, 250);
 
 
 llxFooter();
diff --git a/htdocs/societe/soc.php b/htdocs/societe/soc.php
index 8616c771151..4c36c378e08 100644
--- a/htdocs/societe/soc.php
+++ b/htdocs/societe/soc.php
@@ -1242,7 +1242,7 @@ else
 			if ($object->prospect || $object->client) {
 				print '<tr><td class="toptd">' . fieldLabel('CustomersCategoriesShort', 'custcats') . '</td><td colspan="3">';
 				$cate_arbo = $form->select_all_categories(Categorie::TYPE_CUSTOMER, null, 'parent', null, null, 1);
-				print Form::multiselectarray('custcats', $cate_arbo, GETPOST('custcats', 'array'), null, null, null,
+				print $form->multiselectarray('custcats', $cate_arbo, GETPOST('custcats', 'array'), null, null, null,
 					null, "90%");
 				print "</td></tr>";
 			}
@@ -1251,7 +1251,7 @@ else
 			if ($object->fournisseur) {
 				print '<tr><td class="toptd">' . fieldLabel('SuppliersCategoriesShort', 'suppcats') . '</td><td colspan="3">';
 				$cate_arbo = $form->select_all_categories(Categorie::TYPE_SUPPLIER, null, 'parent', null, null, 1);
-				print Form::multiselectarray('suppcats', $cate_arbo, GETPOST('suppcats', 'array'), null, null, null,
+				print $form->multiselectarray('suppcats', $cate_arbo, GETPOST('suppcats', 'array'), null, null, null,
 					null, "90%");
 				print "</td></tr>";
 			}
@@ -1800,7 +1800,7 @@ else
 					foreach ($cats as $cat) {
 						$arrayselected[] = $cat->id;
 					}
-					print Form::multiselectarray('custcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%');
+					print $form->multiselectarray('custcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%');
 					print "</td></tr>";
 				}
 
@@ -1814,7 +1814,7 @@ else
 					foreach ($cats as $cat) {
 						$arrayselected[] = $cat->id;
 					}
-					print Form::multiselectarray('suppcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%');
+					print $form->multiselectarray('suppcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%');
 					print "</td></tr>";
 				}
 			}
diff --git a/htdocs/user/card.php b/htdocs/user/card.php
index 2b2d40692f3..228526a9b5e 100644
--- a/htdocs/user/card.php
+++ b/htdocs/user/card.php
@@ -1087,7 +1087,7 @@ if (($action == 'create') || ($action == 'adduserldap'))
 	{
 		print '<tr><td>' . fieldLabel( 'Categories', 'usercats' ) . '</td><td colspan="3">';
 		$cate_arbo = $form->select_all_categories( Categorie::TYPE_USER, null, 'parent', null, null, 1 );
-		print Form::multiselectarray( 'usercats', $cate_arbo, GETPOST( 'usercats', 'array' ), null, null, null,
+		print $form->multiselectarray( 'usercats', $cate_arbo, GETPOST( 'usercats', 'array' ), null, null, null,
 			null, '90%' );
 		print "</td></tr>";
 	}
@@ -2231,7 +2231,7 @@ else
 			foreach ($cats as $cat) {
 				$arrayselected[] = $cat->id;
 			}
-			print Form::multiselectarray( 'usercats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%' );
+			print $form->multiselectarray( 'usercats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%' );
 			print "</td></tr>";
 		}