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 '$("#'.GETPOST('paymentsave').'").prop("checked",true);';
     	    print '});';
             print '</script>'."\n";
         }
diff --git a/htdocs/admin/const.php b/htdocs/admin/const.php
index 6b63ba74c6b..55434d4de2e 100644
--- a/htdocs/admin/const.php
+++ b/htdocs/admin/const.php
@@ -165,7 +165,7 @@ jQuery(document).ready(function() {
 		var row_num = field_id.split("_");
 		jQuery("#updateconst").show();
 		jQuery("#action").val('update');
-		jQuery("#check_" + row_num[1]).attr("checked",true);
+		jQuery("#check_" + row_num[1]).prop("checked",true);
 	});
 });
 </script>
diff --git a/htdocs/admin/mails.php b/htdocs/admin/mails.php
index 159c03589b1..2b50008d58a 100644
--- a/htdocs/admin/mails.php
+++ b/htdocs/admin/mails.php
@@ -271,12 +271,12 @@ if ($action == 'edit')
                         {
                             jQuery(".drag").hide();
                             jQuery("#MAIN_MAIL_EMAIL_TLS").val(0);
-                            jQuery("#MAIN_MAIL_EMAIL_TLS").attr(\'disabled\', \'disabled\');
+                            jQuery("#MAIN_MAIL_EMAIL_TLS").prop("disabled", true);
                             ';
 		if ($linuxlike)
 		{
-			print '         jQuery("#MAIN_MAIL_SMTP_SERVER").attr(\'disabled\', \'disabled\');';
-			print '         jQuery("#MAIN_MAIL_SMTP_PORT").attr(\'disabled\', \'disabled\');';
+			print '         jQuery("#MAIN_MAIL_SMTP_SERVER").prop("disabled", true);';
+			print '         jQuery("#MAIN_MAIL_SMTP_PORT").prop("disabled", true);';
 		}
 		print '
                         }
@@ -284,9 +284,9 @@ if ($action == 'edit')
                         {
                             jQuery(".drag").show();
                             jQuery("#MAIN_MAIL_EMAIL_TLS").val('.$conf->global->MAIN_MAIL_EMAIL_TLS.');
-                            jQuery("#MAIN_MAIL_EMAIL_TLS").removeAttr(\'disabled\');
-                            jQuery("#MAIN_MAIL_SMTP_SERVER").removeAttr(\'disabled\');
-                            jQuery("#MAIN_MAIL_SMTP_PORT").removeAttr(\'disabled\');
+                            jQuery("#MAIN_MAIL_EMAIL_TLS").removeAttr("disabled");
+                            jQuery("#MAIN_MAIL_SMTP_SERVER").removeAttr("disabled");
+                            jQuery("#MAIN_MAIL_SMTP_PORT").removeAttr("disabled");
                         }
                     }
                     initfields();
diff --git a/htdocs/admin/menus/edit.php b/htdocs/admin/menus/edit.php
index 9ded9ae1f34..4ab41c7991e 100644
--- a/htdocs/admin/menus/edit.php
+++ b/htdocs/admin/menus/edit.php
@@ -255,12 +255,12 @@ if ($action == 'create')
     	{
     		if (jQuery("#topleft").val() == \'top\')
     		{
-	    		jQuery("#menuId").attr(\'disabled\',\'disabled\');
+				jQuery("#menuId").prop("disabled", true);
 	    		jQuery("#menuId").val(\'\');
 			}
     		else
     		{
-    			jQuery("#menuId").removeAttr(\'disabled\');
+				jQuery("#menuId").removeAttr("disabled");
     		}
     	}
     	init_topleft();
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/barcode/printsheet.php b/htdocs/barcode/printsheet.php
index 1a518b1859c..36d9117eefe 100644
--- a/htdocs/barcode/printsheet.php
+++ b/htdocs/barcode/printsheet.php
@@ -313,28 +313,28 @@ jQuery(document).ready(function() {
 	{
 		if (jQuery("#fillmanually:checked").val() == "fillmanually")
 		{
-			jQuery("#submitproduct").attr(\'disabled\',\'disabled\');
-			jQuery("#submitthirdparty").attr(\'disabled\',\'disabled\');
-			jQuery("#search_productid").attr(\'disabled\',\'disabled\');
-			jQuery("#socid").attr(\'disabled\',\'disabled\');
+			jQuery("#submitproduct").prop("disabled", true);
+			jQuery("#submitthirdparty").prop("disabled", true);
+			jQuery("#search_productid").prop("disabled", true);
+			jQuery("#socid").prop("disabled", true);
 			jQuery(".showforproductselector").hide();
 			jQuery(".showforthirdpartyselector").hide();
 		}
 		if (jQuery("#fillfromproduct:checked").val() == "fillfromproduct")
 		{
-			jQuery("#submitproduct").removeAttr(\'disabled\');
-			jQuery("#submitthirdparty").attr(\'disabled\',\'disabled\');
-			jQuery("#search_productid").removeAttr(\'disabled\');
-			jQuery("#socid").attr(\'disabled\',\'disabled\');
+			jQuery("#submitproduct").removeAttr("disabled");
+			jQuery("#submitthirdparty").prop("disabled", true);
+			jQuery("#search_productid").removeAttr("disabled");
+			jQuery("#socid").prop("disabled", true);
 			jQuery(".showforproductselector").show();
 			jQuery(".showforthirdpartyselector").hide();
 		}
 		if (jQuery("#fillfromthirdparty:checked").val() == "fillfromthirdparty")
 		{
-			jQuery("#submitproduct").attr(\'disabled\',\'disabled\');
-			jQuery("#submitthirdparty").removeAttr(\'disabled\');
-			jQuery("#search_productid").attr(\'disabled\',\'disabled\');
-			jQuery("#socid").removeAttr(\'disabled\');
+			jQuery("#submitproduct").prop("disabled", true);
+			jQuery("#submitthirdparty").removeAttr("disabled");
+			jQuery("#search_productid").prop("disabled", true);
+			jQuery("#socid").removeAttr("disabled");
 			jQuery(".showforproductselector").hide();
 			jQuery(".showforthirdpartyselector").show();
 		}
@@ -348,11 +348,11 @@ jQuery(document).ready(function() {
 	{
 		if (jQuery("#select_fk_barcode_type").val() > 0 && jQuery("#forbarcode").val())
 		{
-			jQuery("#submitformbarcodegen").removeAttr(\'disabled\');
+			jQuery("#submitformbarcodegen").removeAttr("disabled");
 		}
 		else
 		{
-			jQuery("#submitformbarcodegen").attr(\'disabled\',\'disabled\');
+			jQuery("#submitformbarcodegen").prop("disabled", true);
 		}
 	}
 	init_gendoc_button();
diff --git a/htdocs/comm/action/card.php b/htdocs/comm/action/card.php
index a4adb2a74b6..eb88215fa20 100644
--- a/htdocs/comm/action/card.php
+++ b/htdocs/comm/action/card.php
@@ -570,11 +570,11 @@ if ($action == 'create')
 	            			$(".fulldayendmin").removeAttr("disabled");
 	            			$("#p2").removeAttr("disabled");
 	            		} else {
-	            			$(".fulldaystarthour").attr("disabled","disabled").val("00");
-	            			$(".fulldaystartmin").attr("disabled","disabled").val("00");
-	            			$(".fulldayendhour").attr("disabled","disabled").val("23");
-	            			$(".fulldayendmin").attr("disabled","disabled").val("59");
-	            			$("#p2").removeAttr("disabled");
+							$(".fulldaystarthour").prop("disabled", true).val("00");
+							$(".fulldaystartmin").prop("disabled", true).val("00");
+							$(".fulldayendhour").prop("disabled", true).val("23");
+							$(".fulldayendmin").prop("disabled", true).val("59");
+							$("#p2").removeAttr("disabled");
 	            		}
 	            	}
                     setdatefields();
@@ -841,10 +841,10 @@ if ($id > 0)
 	            				$(".fulldayendhour").removeAttr("disabled");
 	            				$(".fulldayendmin").removeAttr("disabled");
 	            			} else {
-	            				$(".fulldaystarthour").attr("disabled","disabled").val("00");
-	            				$(".fulldaystartmin").attr("disabled","disabled").val("00");
-	            				$(".fulldayendhour").attr("disabled","disabled").val("23");
-	            				$(".fulldayendmin").attr("disabled","disabled").val("59");
+								$(".fulldaystarthour").prop("disabled", true).val("00");
+								$(".fulldaystartmin").prop("disabled", true).val("00");
+								$(".fulldayendhour").prop("disabled", true).val("23");
+								$(".fulldayendmin").prop("disabled", true).val("59");
 	            			}
 	            		}
 	            		setdatefields();
diff --git a/htdocs/commande/orderstoinvoice.php b/htdocs/commande/orderstoinvoice.php
index 513e295a913..55797308fb2 100644
--- a/htdocs/commande/orderstoinvoice.php
+++ b/htdocs/commande/orderstoinvoice.php
@@ -512,10 +512,10 @@ if (($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 777ed1f3bd6..556da5db0ce 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 ($action == 'create')
 			// Show credit note options only if we checked credit note
 			print '<script type="text/javascript" language="javascript">
 			jQuery(document).ready(function() {
-				if (! jQuery("#radio_creditnote").attr(\'checked\'))
+				if (! jQuery("#radio_creditnote").is(":checked"))
 				{
 					jQuery("#credit_note_options").hide();
 				}
@@ -2229,8 +2229,8 @@ if ($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/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index be6714cdb1f..2b8912245d5 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -4356,7 +4356,7 @@ class Form
         		   </script>';
         }
 
-        $out.='<select id="'.preg_replace('/^\./','',$htmlname).'" '.($disabled?'disabled="disabled" ':'').'class="flat '.(preg_replace('/^\./','',$htmlname)).($morecss?' '.$morecss:'').'" name="'.preg_replace('/^\./','',$htmlname).'" '.($moreparam?$moreparam:'').'>';
+        $out.='<select id="'.preg_replace('/^\./','',$htmlname).'" '.($disabled?'disabled ':'').'class="flat '.(preg_replace('/^\./','',$htmlname)).($morecss?' '.$morecss:'').'" name="'.preg_replace('/^\./','',$htmlname).'" '.($moreparam?$moreparam:'').'>';
 
         if ($show_empty)
         {
diff --git a/htdocs/core/class/html.formactions.class.php b/htdocs/core/class/html.formactions.class.php
index c656cb0432d..9322680a682 100644
--- a/htdocs/core/class/html.formactions.class.php
+++ b/htdocs/core/class/html.formactions.class.php
@@ -95,17 +95,17 @@ class FormActions
                     percentage.val(value);
 
                     if (defaultvalue == -1) {
-                        percentage.attr('disabled', 'disabled');
+						percentage.prop('disabled', true);
                         $('.hideifna').hide();
                     }
                     else if (defaultvalue == 0) {
 						percentage.val(0);
-                    	percentage.attr('disabled', 'disabled');
+						percentage.prop('disabled', true);
                         $('.hideifna').show();
                     }
                     else if (defaultvalue == 100) {
 						percentage.val(100);
-                        percentage.attr('disabled', 'disabled');
+						percentage.prop('disabled', true);
                         $('.hideifna').show();
                     }
                     else {
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 8d6bc704e21..0b119ada66a 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -132,7 +132,7 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption='', $minLengt
     						// Disable an element
     						if (options.option_disabled) {
     							if (ui.item.disabled) {
-    								$("#" + options.option_disabled).attr("disabled", "disabled");
+									$("#" + options.option_disabled).prop("disabled", true);
     								if (options.error) {
     									$.jnotify(options.error, "error", true);		// Output with jnotify the error message
     								}
@@ -145,7 +145,7 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption='', $minLengt
     						}
     						if (options.disabled) {
     							$.each(options.disabled, function(key, value) {
-    								$("#" + value).attr("disabled", "disabled");
+									$("#" + value).prop("disabled", true);
     							});
     						}
     						if (options.show) {
@@ -524,7 +524,7 @@ function ajax_object_onoff($object, $code, $field, $text_on, $text_off, $input=a
                     // Disable another element
                     if (input.disabled && input.disabled.length > 0) {
                         $.each(input.disabled, function(key,value) {
-                            $("#" + value).attr("disabled", true);
+                            $("#" + value).prop("disabled", true);
                             if ($("#" + value).hasClass("butAction") == true) {
                                 $("#" + value).removeClass("butAction");
                                 $("#" + value).addClass("butActionRefused");
diff --git a/htdocs/core/tpl/admin_extrafields_add.tpl.php b/htdocs/core/tpl/admin_extrafields_add.tpl.php
index 293a363edfd..44de526942f 100644
--- a/htdocs/core/tpl/admin_extrafields_add.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_add.tpl.php
@@ -42,27 +42,27 @@
 
     		if (GETPOST('type') == "separate")
     		{
-    			print "jQuery('#size, #unique, #required, #default_value').val('').attr('disabled','disabled');";
+				print "jQuery('#size, #unique, #required, #default_value').val('').prop('disabled', true);";
     			print 'jQuery("#value_choice").hide();';
     		}
     		?>
 
-    		if (type == 'date') { size.val('').attr('disabled','disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide(); }
-    		else if (type == 'datetime') { size.val('').attr('disabled','disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide(); jQuery("#helpchkbxlst").hide();}
+			if (type == 'date') { size.val('').prop('disabled', true); unique.removeAttr('disabled'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide(); }
+			else if (type == 'datetime') { size.val('').prop('disabled', true); unique.removeAttr('disabled'); jQuery("#value_choice").hide(); jQuery("#helpchkbxlst").hide();}
     		else if (type == 'double') { size.val('24,8').removeAttr('disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide(); jQuery("#helpchkbxlst").hide();}
-    		else if (type == 'int') { size.val('10').removeAttr('disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide(); jQuery("#helpchkbxlst").hide();}
-    		else if (type == 'text') { size.val('2000').removeAttr('disabled'); unique.attr('disabled','disabled').removeAttr('checked'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide(); }
+			else if (type == 'int') { size.val('10').removeAttr('disabled'); unique.removeAttr('disabled'); jQuery("#value_choice").hide(); jQuery("#helpchkbxlst").hide();}
+			else if (type == 'text') { size.val('2000').removeAttr('disabled'); unique.prop('disabled', true).removeAttr('checked'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide(); }
     		else if (type == 'varchar') { size.val('255').removeAttr('disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide(); }
-    		else if (type == 'boolean') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide();}
-    		else if (type == 'price') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled'); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide();}
-    		else if (type == 'select') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
-    		else if (type == 'link') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").show();}
-    		else if (type == 'sellist') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").show();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
-    		else if (type == 'radio') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
-    		else if (type == 'checkbox') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
-    		else if (type == 'chkbxlst') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").show();jQuery("#helplink").hide();}
-    		else if (type == 'separate') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  required.val('').attr('disabled','disabled'); default_value.val('').attr('disabled','disabled'); jQuery("#value_choice").hide();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
-    		else size.val('').attr('disabled','disabled');
+			else if (type == 'boolean') { size.val('').prop('disabled', true); unique.prop('disabled', true); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide();}
+			else if (type == 'price') { size.val('').prop('disabled', true); unique.prop('disabled', true); jQuery("#value_choice").hide();jQuery("#helpchkbxlst").hide();}
+			else if (type == 'select') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
+			else if (type == 'link') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").show();}
+			else if (type == 'sellist') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").show();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
+			else if (type == 'radio') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
+			else if (type == 'checkbox') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
+			else if (type == 'chkbxlst') { size.val('').prop('disabled', true); unique.prop('disabled', true);  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").show();jQuery("#helplink").hide();}
+			else if (type == 'separate') { size.val('').prop('disabled', true); unique.prop('disabled', true);  required.val('').prop('disabled', true); default_value.val('').prop('disabled', true); jQuery("#value_choice").hide();jQuery("#helpselect").hide();jQuery("#helpsellist").hide();jQuery("#helpchkbxlst").hide();jQuery("#helplink").hide();}
+			else size.val('').prop('disabled', true);
     	}
     	init_typeoffields('<?php echo GETPOST('type'); ?>');
     	jQuery("#type").change(function() {
diff --git a/htdocs/core/tpl/admin_extrafields_edit.tpl.php b/htdocs/core/tpl/admin_extrafields_edit.tpl.php
index 91b861381ae..9c283b83867 100644
--- a/htdocs/core/tpl/admin_extrafields_edit.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_edit.tpl.php
@@ -25,15 +25,15 @@
     		var size = jQuery("#size");
     		var unique = jQuery("#unique");
     		var required = jQuery("#required");
-    		if (type == 'date') { size.attr('disabled','disabled'); }
-    		else if (type == 'datetime') { size.attr('disabled','disabled'); }
+			if (type == 'date') { size.prop('disabled', true); }
+			else if (type == 'datetime') { size.prop('disabled', true); }
     		else if (type == 'double') { size.removeAttr('disabled'); }
     		else if (type == 'int') { size.removeAttr('disabled'); }
-    		else if (type == 'text') { size.removeAttr('disabled'); unique.attr('disabled','disabled').removeAttr('checked'); }
+			else if (type == 'text') { size.removeAttr('disabled'); unique.prop('disabled', true).removeAttr('checked'); }
     		else if (type == 'varchar') { size.removeAttr('disabled'); }
-    		else if (type == 'boolean') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');}
-    		else if (type == 'price') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');}
-    		else size.val('').attr('disabled','disabled');
+			else if (type == 'boolean') { size.val('').prop('disabled', true); unique.prop('disabled', true);}
+			else if (type == 'price') { size.val('').prop('disabled', true); unique.prop('disabled', true);}
+			else size.val('').prop('disabled', true);
     	}
     	init_typeoffields(jQuery("#type").val());
     });
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..97a52ff6c34 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").is(":checked") || jQuery("#db_create_user").is(":checked"))
 		{
 			jQuery(".hideroot").show();
 			jQuery(".needroot").removeAttr('disabled');
@@ -496,7 +496,7 @@ jQuery(document).ready(function() {
 		else
 		{
 			jQuery(".hideroot").hide();
-			jQuery(".needroot").attr('disabled','disabled');
+			jQuery(".needroot").prop('disabled', true);
 		}
 	}
 
diff --git a/htdocs/product/stock/tpl/stockcorrection.tpl.php b/htdocs/product/stock/tpl/stockcorrection.tpl.php
index 8f656045ee3..501272983cd 100644
--- a/htdocs/product/stock/tpl/stockcorrection.tpl.php
+++ b/htdocs/product/stock/tpl/stockcorrection.tpl.php
@@ -29,8 +29,8 @@ $langs->load("productbatch");
 		jQuery(document).ready(function() {
 			function init_price()
 			{
-				if (jQuery("#mouvement").val() == \'0\') jQuery("#unitprice").removeAttr(\'disabled\');
-				else jQuery("#unitprice").attr(\'disabled\',\'disabled\');
+				if (jQuery("#mouvement").val() == \'0\') jQuery("#unitprice").removeAttr("disabled");
+				else jQuery("#unitprice").prop("disabled", true);
 			}
 			init_price();
 			jQuery("#mouvement").change(function() {
@@ -116,4 +116,4 @@ $langs->load("productbatch");
 		print '</form>';
 
 ?>
-<!-- END PHP STOCKCORRECTION.TPL.PHP -->
\ No newline at end of file
+<!-- END PHP STOCKCORRECTION.TPL.PHP -->
diff --git a/htdocs/user/card.php b/htdocs/user/card.php
index 0320f44916e..1cbeb6e653d 100644
--- a/htdocs/user/card.php
+++ b/htdocs/user/card.php
@@ -821,22 +821,22 @@ if (($action == 'create') || ($action == 'adduserldap'))
 								$("select[name=admin]").change(function() {
 									 if ( $(this).val() == 0 ) {
 									 	$("input[name=superadmin]")
-									 		.attr("disabled", true)
-									 		.attr("checked", false);
+											.prop("disabled", true)
+											.prop("checked", false);
 									 	$("select[name=entity]")
-											.attr("disabled", false);
+											.prop("disabled", false);
 									 } else {
 									 	$("input[name=superadmin]")
-									 		.attr("disabled", false);
+											.prop("disabled", false);
 									 }
 								});
 								$("input[name=superadmin]").change(function() {
-									if ( $(this).attr("checked") == "checked" ) {
+									if ( $(this).is(":checked") ) {
 										$("select[name=entity]")
-											.attr("disabled", true);
+											.prop("disabled", true);
 									} else {
 										$("select[name=entity]")
-											.attr("disabled", false);
+											.prop("disabled", false);
 									}
 								});
 							});
@@ -1822,32 +1822,32 @@ else
 										var admin = $("select[name=admin]").val();
 										if (admin == 0) {
 											$("input[name=superadmin]")
-													.attr("disabled", true)
-													.attr("checked", false);
+													.prop("disabled", true)
+													.prop("checked", false);
 										}
-										if ($("input[name=superadmin]").attr("checked") == "checked") {
+										if ($("input[name=superadmin]").is(":checked")) {
 											$("select[name=entity]")
-													.attr("disabled", true);
+													.prop("disabled", true);
 										}
 										$("select[name=admin]").change(function() {
 											 if ( $(this).val() == 0 ) {
 											 	$("input[name=superadmin]")
-											 		.attr("disabled", true)
-											 		.attr("checked", false);
+													.prop("disabled", true)
+													.prop("checked", false);
 											 	$("select[name=entity]")
-													.attr("disabled", false);
+													.prop("disabled", false);
 											 } else {
 											 	$("input[name=superadmin]")
-											 		.attr("disabled", false);
+													.prop("disabled", false);
 											 }
 										});
 										$("input[name=superadmin]").change(function() {
-											if ( $(this).attr("checked") == "checked" ) {
+											if ( $(this).is(":checked")) {
 												$("select[name=entity]")
-													.attr("disabled", true);
+													.prop("disabled", true);
 											} else {
 												$("select[name=entity]")
-													.attr("disabled", false);
+													.prop("disabled", false);
 											}
 										});
 									});
diff --git a/htdocs/user/param_ihm.php b/htdocs/user/param_ihm.php
index 4f8259bc007..77e03728af6 100644
--- a/htdocs/user/param_ihm.php
+++ b/htdocs/user/param_ihm.php
@@ -155,11 +155,11 @@ if ($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>';