diff --git a/htdocs/adherents/card_subscriptions.php b/htdocs/adherents/card_subscriptions.php
index ea2ce80d6ca..b8f71055b3b 100644
--- a/htdocs/adherents/card_subscriptions.php
+++ b/htdocs/adherents/card_subscriptions.php
@@ -878,15 +878,15 @@ if ($rowid)
                 print '<tr><td valign="top" class="fieldrequired">'.$langs->trans('MoreActions');
                 print '</td>';
                 print '<td>';
-                print '<input type="radio" class="moreaction" id="none" name="paymentsave" value="none"'.(!$bankdirect&&!$bankviainvoice?' checked="true"':'').'> '.$langs->trans("None").'<br>';
+                print '<input type="radio" class="moreaction" id="none" name="paymentsave" value="none"'.(!$bankdirect&&!$bankviainvoice?' checked="checked"':'').'> '.$langs->trans("None").'<br>';
                 if ($conf->banque->enabled)
                 {
-                    print '<input type="radio" class="moreaction" id="bankdirect" name="paymentsave" value="bankdirect"'.($bankdirect?' checked="true"':'');
+                    print '<input type="radio" class="moreaction" id="bankdirect" name="paymentsave" value="bankdirect"'.($bankdirect?' checked="checked"':'');
                     print '> '.$langs->trans("MoreActionBankDirect").'<br>';
                 }
                 if ($conf->banque->enabled && $conf->societe->enabled && $conf->facture->enabled)
                 {
-                    print '<input type="radio" class="moreaction" id="bankviainvoice" name="paymentsave" value="bankviainvoice"'.($bankviainvoice?' checked="true"':'');
+                    print '<input type="radio" class="moreaction" id="bankviainvoice" name="paymentsave" value="bankviainvoice"'.($bankviainvoice?' checked="checked"':'');
                     if (empty($adh->fk_soc) || empty($bankviainvoice)) print ' disabled="true"';
                     print '> '.$langs->trans("MoreActionBankViaInvoice");
                     if ($adh->fk_soc) print ' ('.$langs->trans("ThirdParty").': '.$company->getNomUrl(1).')';
@@ -901,7 +901,7 @@ if ($rowid)
                 }
                 if ($conf->societe->enabled && $conf->facture->enabled)
                 {
-                    print '<input type="radio" class="moreaction" id="invoiceonly" name="paymentsave" value="invoiceonly"'.($invoiceonly?' checked="true"':'');
+                    print '<input type="radio" class="moreaction" id="invoiceonly" name="paymentsave" value="invoiceonly"'.($invoiceonly?' checked="checked"':'');
                     if (empty($adh->fk_soc) || empty($bankviainvoice)) print ' disabled="true"';
                     print '> '.$langs->trans("MoreActionInvoiceOnly");
                     if ($adh->fk_soc) print ' ('.$langs->trans("ThirdParty").': '.$company->getNomUrl(1).')';
@@ -964,7 +964,7 @@ if ($rowid)
             $subjecttosend=$adh->makeSubstitution($conf->global->ADHERENT_MAIL_COTIS_SUBJECT);
             $texttosend=$adh->makeSubstitution($adht->getMailOnSubscription());
 
-            $tmp='<input name="sendmail" type="checkbox"'.($conf->global->ADHERENT_DEFAULT_SENDINFOBYMAIL?' checked="true"':'').'>';
+            $tmp='<input name="sendmail" type="checkbox"'.($conf->global->ADHERENT_DEFAULT_SENDINFOBYMAIL?' checked="checked"':'').'>';
             $helpcontent='';
             $helpcontent.='<b>'.$langs->trans("MailFrom").'</b>: '.$conf->global->ADHERENT_MAIL_FROM.'<br>'."\n";
             $helpcontent.='<b>'.$langs->trans("MailRecipient").'</b>: '.$adh->email.'<br>'."\n";
diff --git a/htdocs/comm/action/fiche.php b/htdocs/comm/action/fiche.php
index 87378035b70..ca45390ea42 100644
--- a/htdocs/comm/action/fiche.php
+++ b/htdocs/comm/action/fiche.php
@@ -715,7 +715,7 @@ if ($id)
 		print '<tr><td>'.$langs->trans("Title").'</td><td colspan="3"><input type="text" name="label" size="50" value="'.$act->label.'"></td></tr>';
 
         // Full day event
-        print '<tr><td>'.$langs->trans("EventOnFullDay").'</td><td colspan="3"><input type="checkbox" id="fullday" name="fullday" '.($act->fulldayevent?' checked="true"':'').'></td></tr>';
+        print '<tr><td>'.$langs->trans("EventOnFullDay").'</td><td colspan="3"><input type="checkbox" id="fullday" name="fullday" '.($act->fulldayevent?' checked="checked"':'').'></td></tr>';
 
 		// Date start
 		print '<tr><td nowrap="nowrap" class="fieldrequired">'.$langs->trans("DateActionStart").'</td><td colspan="3">';
diff --git a/htdocs/comm/addpropal.php b/htdocs/comm/addpropal.php
index a68e3541cbf..28aa4a1439e 100644
--- a/htdocs/comm/addpropal.php
+++ b/htdocs/comm/addpropal.php
@@ -293,7 +293,7 @@ if ($_GET["action"] == 'create')
 
 		if ($conf->global->PRODUCT_SHOW_WHEN_CREATE) print '<tr><td colspan="3">&nbsp;</td></tr>';
 
-		print '<tr><td valign="top"><input type="radio" name="createmode" value="empty" checked="true"></td>';
+		print '<tr><td valign="top"><input type="radio" name="createmode" value="empty" checked="checked"></td>';
 		print '<td valign="top" colspan="2">'.$langs->trans("CreateEmptyPropal").'</td></tr>';
 	}
 
diff --git a/htdocs/compta/facture.php b/htdocs/compta/facture.php
index 7f9b035687b..a3fd3eddec4 100644
--- a/htdocs/compta/facture.php
+++ b/htdocs/compta/facture.php
@@ -1578,7 +1578,7 @@ if ($action == 'create')
 
     // Standard invoice
     print '<tr height="18"><td width="16px" valign="middle">';
-    print '<input type="radio" name="type" value="0"'.(GETPOST('type')==0?' checked="true"':'').'>';
+    print '<input type="radio" name="type" value="0"'.(GETPOST('type')==0?' checked="checked"':'').'>';
     print '</td><td valign="middle">';
     $desc=$html->textwithpicto($langs->trans("InvoiceStandardAsk"),$langs->transnoentities("InvoiceStandardDesc"),1);
     print $desc;
@@ -1586,7 +1586,7 @@ if ($action == 'create')
 
     // Deposit
     print '<tr height="18"><td width="16px" valign="middle">';
-    print '<input type="radio" name="type" value="3"'.(GETPOST('type')==3?' checked="true"':'').'>';
+    print '<input type="radio" name="type" value="3"'.(GETPOST('type')==3?' checked="checked"':'').'>';
     print '</td><td valign="middle">';
     $desc=$html->textwithpicto($langs->trans("InvoiceDeposit"),$langs->transnoentities("InvoiceDepositDesc"),1);
     print $desc;
@@ -1596,7 +1596,7 @@ if ($action == 'create')
     if ($conf->global->FACTURE_USE_PROFORMAT)
     {
         print '<tr height="18"><td width="16px" valign="middle">';
-        print '<input type="radio" name="type" value="4"'.(GETPOST('type')==4?' checked="true"':'').'>';
+        print '<input type="radio" name="type" value="4"'.(GETPOST('type')==4?' checked="checked"':'').'>';
         print '</td><td valign="middle">';
         $desc=$html->textwithpicto($langs->trans("InvoiceProForma"),$langs->transnoentities("InvoiceProFormaDesc"),1);
         print $desc;
@@ -1605,7 +1605,7 @@ if ($action == 'create')
 
     // Replacement
     print '<tr height="18"><td valign="middle">';
-    print '<input type="radio" name="type" value="1"'.(GETPOST('type')==1?' checked=true':'');
+    print '<input type="radio" name="type" value="1"'.(GETPOST('type')==1?' checked="checked"':'');
     if (! $options) print ' disabled="true"';
     print '>';
     print '</td><td valign="middle">';
diff --git a/htdocs/compta/paiement/cheque/fiche.php b/htdocs/compta/paiement/cheque/fiche.php
index de87c4e27f1..04e5218568e 100644
--- a/htdocs/compta/paiement/cheque/fiche.php
+++ b/htdocs/compta/paiement/cheque/fiche.php
@@ -412,7 +412,7 @@ if ($action == 'new')
 			print '<td>'.$value["banque"]."</td>\n";
 			print '<td align="right">'.price($value["amount"]).'</td>';
 			print '<td align="center">';
-			print '<input id="'.$value["id"].'" class="flat checkforremise_'.$bid.'" checked="true" type="checkbox" name="toRemise[]" value="'.$value["id"].'">';
+			print '<input id="'.$value["id"].'" class="flat checkforremise_'.$bid.'" checked="checked" type="checkbox" name="toRemise[]" value="'.$value["id"].'">';
 			print '</td>' ;
 			print '</tr>';
 
diff --git a/htdocs/contact/perso.php b/htdocs/contact/perso.php
index 339addbaddd..7de2f333936 100644
--- a/htdocs/contact/perso.php
+++ b/htdocs/contact/perso.php
@@ -138,7 +138,7 @@ if ($_GET["action"] == 'edit')
     print '<td colspan="2">'.$langs->trans("Alert").': ';
     if ($contact->birthday_alert)
     {
-        print '<input type="checkbox" name="birthday_alert" checked="true"></td>';
+        print '<input type="checkbox" name="birthday_alert" checked="checked"></td>';
     }
     else
     {
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index c3ec8400510..5a709158e83 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -827,7 +827,7 @@ class Form
             {
             	$out.= '<select class="flat" id="'.$htmlname.'" name="'.$htmlname.'"'.($disabled?' disabled="true"':'').'>';
             	if ($show_empty) $out.= '<option value="-1"'.($id==-1?' selected="selected"':'').'>&nbsp;</option>'."\n";
-                
+
             	$userstatic=new User($this->db);
 
                 while ($i < $num)
@@ -2047,8 +2047,8 @@ class Form
 	                    $more.='<tr>';
 	                    $more.='<td valign="top">'.$input['label'].' </td><td valign="top" align="left">';
 	                    $more.='<input type="checkbox" class="flat" id="'.$input['name'].'" name="'.$input['name'].'"';
-	                    if (! is_bool($input['value']) && $input['value'] != 'false') $more.=' checked="true"';
-	                    if (is_bool($input['value']) && $input['value']) $more.=' checked="true"';
+	                    if (! is_bool($input['value']) && $input['value'] != 'false') $more.=' checked="checked"';
+	                    if (is_bool($input['value']) && $input['value']) $more.=' checked="checked"';
 	                    if ($input['disabled']) $more.=' disabled="true"';
 	                    $more.=' /></td>';
 	                    $more.='<td valign="top" align="left">&nbsp;</td>';
@@ -3566,7 +3566,7 @@ class Form
             {
             	$out.= '<select class="flat" name="'.$htmlname.'"'.($disabled?' disabled="true"':'').'>';
             	if ($show_empty) $out.= '<option value="-1"'.($id==-1?' selected="selected"':'').'>&nbsp;</option>'."\n";
-            	
+
                 while ($i < $num)
                 {
                     $obj = $this->db->fetch_object($resql);
diff --git a/htdocs/fourn/facture/fiche.php b/htdocs/fourn/facture/fiche.php
index ae576c16726..4c8f0238178 100644
--- a/htdocs/fourn/facture/fiche.php
+++ b/htdocs/fourn/facture/fiche.php
@@ -968,7 +968,7 @@ if ($_GET['action'] == 'create')
 
 	// Standard invoice
 	print '<tr height="18"><td width="16px" valign="middle">';
-	print '<input type="radio" name="type" value="0"'.($_POST['type']==0?' checked="true"':'').'>';
+	print '<input type="radio" name="type" value="0"'.($_POST['type']==0?' checked="checked"':'').'>';
 	print '</td><td valign="middle">';
 	$desc=$html->textwithpicto($langs->trans("InvoiceStandardAsk"),$langs->transnoentities("InvoiceStandardDesc"),1);
 	print $desc;
@@ -977,7 +977,7 @@ if ($_GET['action'] == 'create')
 	/*
 	// Deposit
 	print '<tr height="18"><td width="16px" valign="middle">';
-	print '<input type="radio" name="type" value="3"'.($_POST['type']==3?' checked="true"':'').'>';
+	print '<input type="radio" name="type" value="3"'.($_POST['type']==3?' checked="checked"':'').'>';
 	print '</td><td valign="middle">';
 	$desc=$html->textwithpicto($langs->trans("InvoiceDeposit"),$langs->transnoentities("InvoiceDepositDesc"),1);
 	print $desc;
@@ -987,7 +987,7 @@ if ($_GET['action'] == 'create')
 	if ($conf->global->FACTURE_USE_PROFORMAT)
 	{
 		print '<tr height="18"><td width="16px" valign="middle">';
-		print '<input type="radio" name="type" value="4"'.($_POST['type']==4?' checked="true"':'').'>';
+		print '<input type="radio" name="type" value="4"'.($_POST['type']==4?' checked="checked"':'').'>';
 		print '</td><td valign="middle">';
 		$desc=$html->textwithpicto($langs->trans("InvoiceProForma"),$langs->transnoentities("InvoiceProFormaDesc"),1);
 		print $desc;
@@ -996,7 +996,7 @@ if ($_GET['action'] == 'create')
 
 	// Replacement
 	print '<tr height="18"><td valign="middle">';
-	print '<input type="radio" name="type" value="1"'.($_POST['type']==1?' checked=true':'');
+	print '<input type="radio" name="type" value="1"'.($_POST['type']==1?' checked="checked"':'');
 	if (! $options) print ' disabled="true"';
 	print '>';
 	print '</td><td valign="middle">';
diff --git a/htdocs/imports/import.php b/htdocs/imports/import.php
index a97a8573cf2..af9c2600519 100644
--- a/htdocs/imports/import.php
+++ b/htdocs/imports/import.php
@@ -1182,7 +1182,7 @@ if ($step == 5 && $datatoimport)
 	print $langs->trans("Option");
 	print '</td><td>';
 	print '<input type="checkbox" name="excludefirstline" value="1"';
-	print ($excludefirstline?' checked="true"':'');
+	print ($excludefirstline?' checked="checked"':'');
 	print ' onClick="javascript: window.location=\''.$_SERVER["PHP_SELF"].'?leftmenu=import&excludefirstline='.($excludefirstline?'0':'1').'&step=5'.$param2.'\';">';
 	print ' '.$langs->trans("DoNotImportFirstLine");
 	print '</td></tr>';
@@ -1532,7 +1532,7 @@ if ($step == 6 && $datatoimport)
 	print $langs->trans("Option");
 	print '</td><td>';
 	print '<input type="checkbox" name="excludefirstline" value="1" disabled="true"';
-	print ($excludefirstline?' checked="true"':'');
+	print ($excludefirstline?' checked="checked"':'');
 	print '>';
 	print ' '.$langs->trans("DoNotImportFirstLine");
 	print '</td></tr>';
diff --git a/htdocs/product/composition/fiche.php b/htdocs/product/composition/fiche.php
index 7a94864953a..b16e94d669c 100644
--- a/htdocs/product/composition/fiche.php
+++ b/htdocs/product/composition/fiche.php
@@ -201,7 +201,7 @@ if ($id || $ref)
 
 			// Number of subproducts
 			$prodsfather = $product->getFather(); //Parent Products
-			$product->get_sousproduits_arbo (); 
+			$product->get_sousproduits_arbo ();
 			print '<tr><td>'.$langs->trans("AssociatedProductsNumber").'</td><td>'.sizeof($product->get_arbo_each_prod()).'</td>';
 
 			dol_fiche_end();
@@ -232,10 +232,10 @@ if ($id || $ref)
 				print '</table>';
 				print '</td></tr>';
 			}
-			
+
 			// Number of parent products
 			print '<tr><td>'.$langs->trans("ParentProductsNumber").'</td><td>'.sizeof($prodsfather).'</td>';
-			
+
 			if(sizeof($prodsfather) > 0)
 			{
 				print '<tr><td colspan="2">';
@@ -317,10 +317,10 @@ if ($id || $ref)
 			print '</table>';
 			print '</td></tr>';
 		}
-		
+
 		// Number of parent products
 		print '<tr><td>'.$langs->trans("ParentProductsNumber").'</td><td>'.sizeof($prodsfather).'</td>';
-		
+
 		if(sizeof($prodsfather) > 0)
 		{
 			print '<tr><td colspan="2">';
@@ -435,7 +435,7 @@ if ($id || $ref)
 						print '<td>'.$labeltoshow.'</td>';
 						if($product->is_sousproduit($id, $objp->rowid))
 						{
-							$addchecked = ' checked="true"';
+							$addchecked = ' checked="checked"';
 							$qty=$product->is_sousproduit_qty;
 						}
 						else
diff --git a/htdocs/public/demo/index.php b/htdocs/public/demo/index.php
index 2dd63e04e99..3d19b0a1dea 100644
--- a/htdocs/public/demo/index.php
+++ b/htdocs/public/demo/index.php
@@ -250,7 +250,7 @@ foreach ($demoprofiles as $profilarray)
 		print '<tr>';
 		print '<td width="50"><a href="'.$urlwithmod.'" id="a1'.$profilarray['key'].'" class="modulelineshow"><img src="'.$profilarray['icon'].'" width="48" border="0" alt="Demo '.$profilarray['label'].'"></a></td>';
 		//print '<td><input type="radio" name="demochoice"';
-		//if ($profilarray['default']) print ' checked="true"';
+		//if ($profilarray['default']) print ' checked="checked"';
 		//print ' value="'.$profilarray['key'].'"></td>';
 		print '<td><a href="'.$urlwithmod.'" id="a2'.$profilarray['key'].'" class="modulelineshow">'.$langs->trans($profilarray['label']).'</a></td></tr>'."\n";
 
@@ -274,7 +274,7 @@ foreach ($demoprofiles as $profilarray)
 		    if ($modulo == 0) print '<tr>';
             print '<td><input type="checkbox" class="checkbox" name="'.$modulekeyname.'" value="1"';
             if (in_array($modulekeyname,$alwaysuncheckedmodules)) print ' disabled="true"';
-            if (! in_array($modulekeyname,$alwaysuncheckedmodules)  && (! in_array($modulekeyname,$listofdisabledmodules) || in_array($modulekeyname,$alwayscheckedmodules))) print ' checked="true"';
+            if (! in_array($modulekeyname,$alwaysuncheckedmodules)  && (! in_array($modulekeyname,$listofdisabledmodules) || in_array($modulekeyname,$alwayscheckedmodules))) print ' checked="checked"';
             print '>'.$val->getName().' &nbsp;';
             print '<!-- id='.$val->numero.' -->';
             print '</td>';
diff --git a/htdocs/societe/canvas/default/tpl/card_create.tpl.php b/htdocs/societe/canvas/default/tpl/card_create.tpl.php
index 36a9f8e1b8c..2ec271b7d72 100644
--- a/htdocs/societe/canvas/default/tpl/card_create.tpl.php
+++ b/htdocs/societe/canvas/default/tpl/card_create.tpl.php
@@ -29,9 +29,9 @@ dol_htmloutput_errors($this->control->tpl['error'],$this->control->tpl['errors']
 <?php echo $this->control->tpl['ajax_selecttype']; ?>
 <br>
 <?php echo $langs->trans("ThirdPartyType") ?>: &nbsp;
-<input type="radio" id="radiocompany" class="flat" name="private" value="0"'<?php echo (! $_REQUEST["private"]?' checked="true"':''); ?>>
+<input type="radio" id="radiocompany" class="flat" name="private" value="0"'<?php echo (! $_REQUEST["private"]?' checked="checked"':''); ?>>
 <?php echo $langs->trans("Company/Fundation"); ?> &nbsp; &nbsp;
-<input type="radio" id="radioprivate" class="flat" name="private" value="1"'<?php echo (! $_REQUEST["private"]?'':' checked="true"'); ?>> <?php echo $langs->trans("Individual"); ?> (<?php echo $langs->trans("ToCreateContactWithSameName") ?>)
+<input type="radio" id="radioprivate" class="flat" name="private" value="1"'<?php echo (! $_REQUEST["private"]?'':' checked="checked"'); ?>> <?php echo $langs->trans("Individual"); ?> (<?php echo $langs->trans("ToCreateContactWithSameName") ?>)
 <br>
 <br>
 <?php echo $this->control->tpl['ajax_selectcountry']; ?>
diff --git a/htdocs/societe/canvas/individual/tpl/card_create.tpl.php b/htdocs/societe/canvas/individual/tpl/card_create.tpl.php
index 5d5cdbf5792..69e420cf996 100644
--- a/htdocs/societe/canvas/individual/tpl/card_create.tpl.php
+++ b/htdocs/societe/canvas/individual/tpl/card_create.tpl.php
@@ -29,9 +29,9 @@ dol_htmloutput_errors($this->control->tpl['error'],$this->control->tpl['errors']
 <?php echo $this->control->tpl['ajax_selecttype']; ?>
 <br>
 <?php echo $langs->trans("ThirdPartyType") ?>: &nbsp;
-<input type="radio" id="radiocompany" class="flat" name="private" value="0"'<?php echo (! $_REQUEST["private"]?' checked="true"':''); ?>>
+<input type="radio" id="radiocompany" class="flat" name="private" value="0"'<?php echo (! $_REQUEST["private"]?' checked="checked"':''); ?>>
 <?php echo $langs->trans("Company/Fundation"); ?> &nbsp; &nbsp;
-<input type="radio" id="radioprivate" class="flat" name="private" value="1"'<?php echo (! $_REQUEST["private"]?'':' checked="true"'); ?>> <?php echo $langs->trans("Individual"); ?> (<?php echo $langs->trans("ToCreateContactWithSameName") ?>)
+<input type="radio" id="radioprivate" class="flat" name="private" value="1"'<?php echo (! $_REQUEST["private"]?'':' checked="checked"'); ?>> <?php echo $langs->trans("Individual"); ?> (<?php echo $langs->trans("ToCreateContactWithSameName") ?>)
 <br>
 <br>
 <?php echo $this->control->tpl['ajax_selectcountry']; ?>
diff --git a/htdocs/societe/soc.php b/htdocs/societe/soc.php
index 4ca20be2acf..12277db42a3 100644
--- a/htdocs/societe/soc.php
+++ b/htdocs/societe/soc.php
@@ -700,10 +700,10 @@ else
 
             print "<br>\n";
             print $langs->trans("ThirdPartyType").': &nbsp; ';
-            print '<input type="radio" id="radiocompany" class="flat" name="private" value="0"'.(! GETPOST("private")?' checked="true"':'');
+            print '<input type="radio" id="radiocompany" class="flat" name="private" value="0"'.(! GETPOST("private")?' checked="checked"':'');
             print '> '.$langs->trans("Company/Fundation");
             print ' &nbsp; &nbsp; ';
-            print '<input type="radio" id="radioprivate" class="flat" name="private" value="1"'.(! GETPOST("private")?'':' checked="true"');
+            print '<input type="radio" id="radioprivate" class="flat" name="private" value="1"'.(! GETPOST("private")?'':' checked="checked"');
             print '> '.$langs->trans("Individual");
             print ' ('.$langs->trans("ToCreateContactWithSameName").')';
             print "<br>\n";