diff --git a/htdocs/adherents/card_subscriptions.php b/htdocs/adherents/card_subscriptions.php
index 369027b1e14..3aedb6fe50c 100644
--- a/htdocs/adherents/card_subscriptions.php
+++ b/htdocs/adherents/card_subscriptions.php
@@ -873,7 +873,7 @@ if ($rowid)
                             }
                         });
                         ';
-            if (GETPOST('paymentsave')) print '$("#'.GETPOST('paymentsave').'").attr("checked",true);';
+            if (GETPOST('paymentsave')) print '$("#'.GETPOST('paymentsave').'").prop("checked",true);';
     	    print '});';
             print '</script>'."\n";
         }
diff --git a/htdocs/admin/const.php b/htdocs/admin/const.php
index 6b63ba74c6b..55434d4de2e 100644
--- a/htdocs/admin/const.php
+++ b/htdocs/admin/const.php
@@ -165,7 +165,7 @@ jQuery(document).ready(function() {
 		var row_num = field_id.split("_");
 		jQuery("#updateconst").show();
 		jQuery("#action").val('update');
-		jQuery("#check_" + row_num[1]).attr("checked",true);
+		jQuery("#check_" + row_num[1]).prop("checked",true);
 	});
 });
 </script>
diff --git a/htdocs/admin/tools/dolibarr_export.php b/htdocs/admin/tools/dolibarr_export.php
index 842efb3a0ac..671a9bf9eba 100644
--- a/htdocs/admin/tools/dolibarr_export.php
+++ b/htdocs/admin/tools/dolibarr_export.php
@@ -96,7 +96,7 @@ jQuery(document).ready(function() {
 	jQuery("#select_sql_compat").click(function() {
 		if (jQuery("#select_sql_compat").val() == 'POSTGRESQL')
 		{
-			jQuery("#checkbox_dump_disable-add-locks").attr('checked',true);
+			jQuery("#checkbox_dump_disable-add-locks").prop('checked',true);
 		}
 	});
 
diff --git a/htdocs/commande/orderstoinvoice.php b/htdocs/commande/orderstoinvoice.php
index 39253325716..1203a987abf 100644
--- a/htdocs/commande/orderstoinvoice.php
+++ b/htdocs/commande/orderstoinvoice.php
@@ -512,10 +512,10 @@ if (($action != 'create' && $action != 'add') || !$error)
 	<script type="text/javascript">
 		jQuery(document).ready(function() {
 		jQuery("#checkall").click(function() {
-			jQuery(".checkformerge").attr('checked', true);
+			jQuery(".checkformerge").prop('checked', true);
 		});
 		jQuery("#checknone").click(function() {
-			jQuery(".checkformerge").attr('checked', false);
+			jQuery(".checkformerge").prop('checked', false);
 		});
 	});
 	</script>
diff --git a/htdocs/compta/facture.php b/htdocs/compta/facture.php
index 1aaca07b57d..e3e753ab7eb 100644
--- a/htdocs/compta/facture.php
+++ b/htdocs/compta/facture.php
@@ -2099,7 +2099,7 @@ if ($action == 'create')
 		print '<script type="text/javascript" language="javascript">
 		jQuery(document).ready(function() {
 			jQuery("#typedeposit, #valuedeposit").click(function() {
-				jQuery("#radio_deposit").attr(\'checked\',\'checked\');
+				jQuery("#radio_deposit").prop("checked", true);
 			});
 		});
 		</script>';
@@ -2154,7 +2154,7 @@ if ($action == 'create')
 		print '<script type="text/javascript" language="javascript">
 		jQuery(document).ready(function() {
 			jQuery("#fac_replacement").change(function() {
-				jQuery("#radio_replacement").attr(\'checked\',\'checked\');
+				jQuery("#radio_replacement").prop("checked", true);
 			});
 		});
 		</script>';
@@ -2200,7 +2200,7 @@ if ($action == 'create')
 			// Show credit note options only if we checked credit note
 			print '<script type="text/javascript" language="javascript">
 			jQuery(document).ready(function() {
-				if (! jQuery("#radio_creditnote").attr(\'checked\'))
+				if (! jQuery("#radio_creditnote").prop("checked"))
 				{
 					jQuery("#credit_note_options").hide();
 				}
@@ -2229,8 +2229,8 @@ if ($action == 'create')
 			print $desc;
 
 			print '<div id="credit_note_options">';
-	        print '&nbsp;&nbsp;&nbsp; <input type="checkbox" name="invoiceAvoirWithLines" id="invoiceAvoirWithLines" value="1" onclick="if($(this).is(\':checked\') ) { $(\'#radio_creditnote\').attr(\'checked\',\'checked\'); $(\'#invoiceAvoirWithPaymentRestAmount\').removeAttr(\'checked\');   }" '.(GETPOST('invoiceAvoirWithLines','int')>0 ? 'checked':'').' /> <label for="invoiceAvoirWithLines">'.$langs->trans('invoiceAvoirWithLines')."</label>";
-	        print '<br>&nbsp;&nbsp;&nbsp; <input type="checkbox" name="invoiceAvoirWithPaymentRestAmount" id="invoiceAvoirWithPaymentRestAmount" value="1" onclick="if($(this).is(\':checked\') ) { $(\'#radio_creditnote\').attr(\'checked\',\'checked\');  $(\'#invoiceAvoirWithLines\').removeAttr(\'checked\');   }" '.(GETPOST('invoiceAvoirWithPaymentRestAmount','int')>0 ? 'checked':'').' /> <label for="invoiceAvoirWithPaymentRestAmount">'.$langs->trans('invoiceAvoirWithPaymentRestAmount')."</label>";
+	        print '&nbsp;&nbsp;&nbsp; <input type="checkbox" name="invoiceAvoirWithLines" id="invoiceAvoirWithLines" value="1" onclick="if($(this).is(\':checked\') ) { $(\'#radio_creditnote\').prop("checked", true); $(\'#invoiceAvoirWithPaymentRestAmount\').removeAttr(\'checked\');   }" '.(GETPOST('invoiceAvoirWithLines','int')>0 ? 'checked':'').' /> <label for="invoiceAvoirWithLines">'.$langs->trans('invoiceAvoirWithLines')."</label>";
+	        print '<br>&nbsp;&nbsp;&nbsp; <input type="checkbox" name="invoiceAvoirWithPaymentRestAmount" id="invoiceAvoirWithPaymentRestAmount" value="1" onclick="if($(this).is(\':checked\') ) { $(\'#radio_creditnote\').prop("checked", true);  $(\'#invoiceAvoirWithLines\').removeAttr(\'checked\');   }" '.(GETPOST('invoiceAvoirWithPaymentRestAmount','int')>0 ? 'checked':'').' /> <label for="invoiceAvoirWithPaymentRestAmount">'.$langs->trans('invoiceAvoirWithPaymentRestAmount')."</label>";
 			print '</div>';
 
 			print '</td></tr>' . "\n";
diff --git a/htdocs/compta/facture/mergepdftool.php b/htdocs/compta/facture/mergepdftool.php
index fa598e09a35..2a998c07a53 100644
--- a/htdocs/compta/facture/mergepdftool.php
+++ b/htdocs/compta/facture/mergepdftool.php
@@ -393,16 +393,16 @@ llxHeader('',$title);
 <script type="text/javascript">
 $(document).ready(function() {
 	$("#checkall").click(function() {
-		$(".checkformerge").attr('checked', true);
+		$(".checkformerge").prop('checked', true);
 	});
 	$("#checknone").click(function() {
-		$(".checkformerge").attr('checked', false);
+		$(".checkformerge").prop('checked', false);
 	});
 	$("#checkallsend").click(function() {
-		$(".checkforsend").attr('checked', true);
+		$(".checkforsend").prop('checked', true);
 	});
 	$("#checknonesend").click(function() {
-		$(".checkforsend").attr('checked', false);
+		$(".checkforsend").prop('checked', false);
 	});
 });
 </script>
diff --git a/htdocs/compta/paiement/cheque/card.php b/htdocs/compta/paiement/cheque/card.php
index 6b218d52430..dba17a4798c 100644
--- a/htdocs/compta/paiement/cheque/card.php
+++ b/htdocs/compta/paiement/cheque/card.php
@@ -414,11 +414,11 @@ if ($action == 'new')
         {
             jQuery("#checkall_'.$bid.'").click(function()
             {
-                jQuery(".checkforremise_'.$bid.'").attr(\'checked\', true);
+                jQuery(".checkforremise_'.$bid.'").prop(\'checked\', true);
             });
             jQuery("#checknone_'.$bid.'").click(function()
             {
-                jQuery(".checkforremise_'.$bid.'").attr(\'checked\', false);
+                jQuery(".checkforremise_'.$bid.'").prop(\'checked\', false);
             });
         });
         </script>
diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index 0d18cd9b8b5..9c6cfd2e1be 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -583,8 +583,8 @@ function setforfree() {
 	jQuery("#idprod").val('');
 	jQuery("#idprodfournprice").val('0');	// Set cursor on not selected product
 	jQuery("#search_idprodfournprice").val('');
-	jQuery("#prod_entry_mode_free").attr('checked',true);
-	jQuery("#prod_entry_mode_predef").attr('checked',false);
+	jQuery("#prod_entry_mode_free").prop('checked',true);
+	jQuery("#prod_entry_mode_predef").prop('checked',false);
 	jQuery("#price_ht").show();
 	jQuery("#price_ttc").show();	// May no exists
 	jQuery("#tva_tx").show();
@@ -601,8 +601,8 @@ function setforfree() {
 }
 function setforpredef() {
 	jQuery("#select_type").val(-1);
-	jQuery("#prod_entry_mode_free").attr('checked',false);
-	jQuery("#prod_entry_mode_predef").attr('checked',true);
+	jQuery("#prod_entry_mode_free").prop('checked',false);
+	jQuery("#prod_entry_mode_predef").prop('checked',true);
 	jQuery("#price_ht").hide();
 	jQuery("#title_up_ht").hide();
 	jQuery("#price_ttc").hide();	// May no exists
diff --git a/htdocs/fourn/commande/orderstoinvoice.php b/htdocs/fourn/commande/orderstoinvoice.php
index d35d318d4a2..a18031de4d4 100644
--- a/htdocs/fourn/commande/orderstoinvoice.php
+++ b/htdocs/fourn/commande/orderstoinvoice.php
@@ -386,10 +386,10 @@ if (($action != 'create' && $action != 'add') || ! empty($mesgs)) {
 <script type="text/javascript">
 		jQuery(document).ready(function() {
 		jQuery("#checkall").click(function() {
-			jQuery(".checkformerge").attr('checked', true);
+			jQuery(".checkformerge").prop('checked', true);
 		});
 		jQuery("#checknone").click(function() {
-			jQuery(".checkformerge").attr('checked', false);
+			jQuery(".checkformerge").prop('checked', false);
 		});
 	});
 	</script>
diff --git a/htdocs/install/fileconf.php b/htdocs/install/fileconf.php
index 1256c5b215a..7df38b46d61 100644
--- a/htdocs/install/fileconf.php
+++ b/htdocs/install/fileconf.php
@@ -487,8 +487,8 @@ jQuery(document).ready(function() {
 
 	function init_needroot()
 	{
-		/*alert(jQuery("#db_create_database").attr("checked")); */
-		if (jQuery("#db_create_database").attr("checked") || jQuery("#db_create_user").attr("checked"))
+		/*alert(jQuery("#db_create_database").prop("checked")); */
+		if (jQuery("#db_create_database").prop("checked") || jQuery("#db_create_user").prop("checked"))
 		{
 			jQuery(".hideroot").show();
 			jQuery(".needroot").removeAttr('disabled');
diff --git a/htdocs/user/card.php b/htdocs/user/card.php
index 0320f44916e..77352b630f1 100644
--- a/htdocs/user/card.php
+++ b/htdocs/user/card.php
@@ -822,7 +822,7 @@ if (($action == 'create') || ($action == 'adduserldap'))
 									 if ( $(this).val() == 0 ) {
 									 	$("input[name=superadmin]")
 									 		.attr("disabled", true)
-									 		.attr("checked", false);
+											.prop("checked", false);
 									 	$("select[name=entity]")
 											.attr("disabled", false);
 									 } else {
@@ -831,7 +831,7 @@ if (($action == 'create') || ($action == 'adduserldap'))
 									 }
 								});
 								$("input[name=superadmin]").change(function() {
-									if ( $(this).attr("checked") == "checked" ) {
+									if ( $(this).prop("checked", true) ) {
 										$("select[name=entity]")
 											.attr("disabled", true);
 									} else {
@@ -1823,9 +1823,9 @@ else
 										if (admin == 0) {
 											$("input[name=superadmin]")
 													.attr("disabled", true)
-													.attr("checked", false);
+													.prop("checked", false);
 										}
-										if ($("input[name=superadmin]").attr("checked") == "checked") {
+										if ($("input[name=superadmin]").prop("checked", true)) {
 											$("select[name=entity]")
 													.attr("disabled", true);
 										}
@@ -1833,7 +1833,7 @@ else
 											 if ( $(this).val() == 0 ) {
 											 	$("input[name=superadmin]")
 											 		.attr("disabled", true)
-											 		.attr("checked", false);
+													.prop("checked", false);
 											 	$("select[name=entity]")
 													.attr("disabled", false);
 											 } else {
@@ -1842,7 +1842,7 @@ else
 											 }
 										});
 										$("input[name=superadmin]").change(function() {
-											if ( $(this).attr("checked") == "checked" ) {
+											if ( $(this).prop("checked", true)) {
 												$("select[name=entity]")
 													.attr("disabled", true);
 											} else {
diff --git a/htdocs/user/param_ihm.php b/htdocs/user/param_ihm.php
index 4f8259bc007..77e03728af6 100644
--- a/htdocs/user/param_ihm.php
+++ b/htdocs/user/param_ihm.php
@@ -155,11 +155,11 @@ if ($action == 'edit')
 	print '<script type="text/javascript" language="javascript">
 	jQuery(document).ready(function() {
 		$("#main_lang_default").change(function() {
-			$("#check_MAIN_LANG_DEFAULT").attr(\'checked\', true);
+			$("#check_MAIN_LANG_DEFAULT").prop("checked", true);
 		});
 		$("#main_size_liste_limit").keyup(function() {
-			if ($(this).val().length) $("#check_SIZE_LISTE_LIMIT").attr(\'checked\', true);
-			else $("#check_SIZE_LISTE_LIMIT").attr(\'checked\', false);
+			if ($(this).val().length) $("#check_SIZE_LISTE_LIMIT").prop("checked", true);
+			else $("#check_SIZE_LISTE_LIMIT").prop("checked", false);
 		});
 	});
 	</script>';