diff --git a/index.php b/index.php
index e50c018..4cb25ab 100644
--- a/index.php
+++ b/index.php
@@ -430,7 +430,7 @@ if (isset($_POST['login']))
         ban_loginFailed();
         $redir = '';
         if (isset($_GET['post'])) { $redir = '&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):''); }
-        echo '<script language="JavaScript">alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
+        echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
         exit;
     }
 }
@@ -1387,12 +1387,12 @@ function renderPage()
 
             // Make sure old password is correct.
             $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
-            if ($oldhash!=$GLOBALS['hash']) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
+            if ($oldhash!=$GLOBALS['hash']) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
             // Save new password
             $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
             $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
             writeConfig();
-            echo '<script language="JavaScript">alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
+            echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
             exit;
         }
         else // show the change password form.
@@ -1423,7 +1423,7 @@ function renderPage()
             $GLOBALS['disablejquery']=!empty($_POST['disablejquery']);
             $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
             writeConfig();
-            echo '<script language="JavaScript">alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
+            echo '<script>alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
             exit;
         }
         else // Show the configuration form.
@@ -1467,7 +1467,7 @@ function renderPage()
                 $LINKSDB[$key]=$value;
             }
             $LINKSDB->savedb(); // Save to disk.
-            echo '<script language="JavaScript">alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
+            echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
             exit;
         }
 
@@ -1484,7 +1484,7 @@ function renderPage()
                 $LINKSDB[$key]=$value;
             }
             $LINKSDB->savedb(); // Save to disk.
-            echo '<script language="JavaScript">alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
+            echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
             exit;
         }
     }
@@ -1515,7 +1515,7 @@ function renderPage()
         pubsubhub();
 
         // If we are called from the bookmarklet, we must close the popup:
-        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
+        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; }
         $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
         $returnurl .= '#'.smallHash($linkdate);  // Scroll to the link which has been edited.
         header('Location: '.$returnurl); // After saving the link, redirect to the page the user was on.
@@ -1526,7 +1526,7 @@ function renderPage()
     if (isset($_POST['cancel_edit']))
     {
         // If we are called from the bookmarklet, we must close the popup:
-        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
+        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; }
         $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
         $returnurl .= '#'.smallHash($_POST['lf_linkdate']);  // Scroll to the link which has been edited.
         header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
@@ -1545,7 +1545,7 @@ function renderPage()
         $LINKSDB->savedb(); // save to disk
 
         // If we are called from the bookmarklet, we must close the popup:
-        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
+        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script>self.close();</script>'; exit; }
         header('Location: ?'); // After deleting the link, redirect to the home page.
         exit;
     }
@@ -1681,7 +1681,7 @@ HTML;
         if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
         {
             $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
-            echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>';
+            echo '<script>alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>';
             exit;
         }
         if (!tokenOk($_POST['token'])) die('Wrong token.');
@@ -1785,11 +1785,11 @@ function importFile()
         }
         $LINKSDB->savedb();
 
-        echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
+        echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
     }
     else
     {
-        echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
+        echo '<script>alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
     }
 }
 
@@ -2123,7 +2123,7 @@ function install()
         $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
         $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.htmlspecialchars(indexUrl()) : $_POST['title'] );
         writeConfig();
-        echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
+        echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
         exit;
     }
 
@@ -2177,7 +2177,7 @@ function templateTZform($ptz=false)
         $cities_html = $cities[$pcontinent];
         $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select>";
         $timezone_form .= "&nbsp;&nbsp;&nbsp;&nbsp;City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br />";
-        $timezone_js = "<script language=\"JavaScript\">";
+        $timezone_js = "<script>";
         $timezone_js .= "function onChangecontinent(){document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];}";
         $timezone_js .= "var citiescontinent = ".json_encode($cities).";" ;
         $timezone_js .= "</script>" ;
@@ -2292,7 +2292,7 @@ function writeConfig()
     $config .= ' ?>';
     if (!file_put_contents($GLOBALS['config']['CONFIG_FILE'],$config) || strcmp(file_get_contents($GLOBALS['config']['CONFIG_FILE']),$config)!=0)
     {
-        echo '<script language="JavaScript">alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location=\'?\';</script>';
+        echo '<script>alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location=\'?\';</script>';
         exit;
     }
 }
diff --git a/tpl/changetag.html b/tpl/changetag.html
index 79fea9a..fdfb0b3 100644
--- a/tpl/changetag.html
+++ b/tpl/changetag.html
@@ -12,11 +12,11 @@
 	<input type="text" name="totag" id="totag">
 	<input type="submit" name="renametag" value="Rename tag" class="bigbutton">
 	&nbsp;&nbsp;or&nbsp; <input type="submit" name="deletetag" value="Delete tag" class="bigbutton" onClick="return confirmDeleteTag();"><br>(Case sensitive)</form>
-<script language="JavaScript">function confirmDeleteTag() { var agree=confirm("Are you sure you want to delete this tag from all links ?"); if (agree) return true ; else return false ; }</script>
+<script>function confirmDeleteTag() { var agree=confirm("Are you sure you want to delete this tag from all links ?"); if (agree) return true ; else return false ; }</script>
 </div>
 {include="page.footer"}
 {if="($GLOBALS['config']['OPEN_SHAARLI'] || isLoggedIn()) && empty($GLOBALS['disablejquery'])"}
-<script language="JavaScript">
+<script>
 $(document).ready(function()
 {
     $('#fromtag').autocomplete({source:'{$source}?ws=singletag',minLength:1});
diff --git a/tpl/editlink.html b/tpl/editlink.html
index 454dfff..047e7f0 100644
--- a/tpl/editlink.html
+++ b/tpl/editlink.html
@@ -33,7 +33,7 @@
 </div>
 {include="page.footer"}
 {if="($GLOBALS['config']['OPEN_SHAARLI'] || isLoggedIn()) && empty($GLOBALS['disablejquery'])"}
-<script language="JavaScript">
+<script>
 $(document).ready(function()
 {
     $('#lf_tags').autocomplete({source:'{$source}?ws=tags',minLength:1});
diff --git a/tpl/linklist.html b/tpl/linklist.html
index 42a75a1..d5bfadf 100644
--- a/tpl/linklist.html
+++ b/tpl/linklist.html
@@ -52,7 +52,7 @@
                 <span class="linkarchive"><a href="https://web.archive.org/web/{$value.url|htmlspecialchars}">archive</a> - </span>
                 {/if}
                 <div class="linkqrcode"><a href="http://qrfree.kaywa.com/?l=1&amp;s=8&amp;d={$scripturl|urlencode}%3F{$value.linkdate|smallHash}"
-                    onclick="showQrCode(this); return false;" class="qrcode" data-permalink="{$scripturl}?{$value.linkdate|smallHash}"><img src="images/qrcode.png#" title="QR-Code" alt="QR-Code"></a></div> -
+                    onclick="return showQrCode(this);" class="qrcode" data-permalink="{$scripturl}?{$value.linkdate|smallHash}"><img src="images/qrcode.png#" title="QR-Code"></a></div> -
                 <a href="{$value.url|htmlspecialchars}"><span class="linkurl" title="Short link">{$value.url|htmlspecialchars}</span></a><br>
                 {if="$value.tags"}
                     <div class="linktaglist">
@@ -79,12 +79,20 @@ function remove_qrcode()
     return false;
 }
 
+function isCanvasSupported(){
+    var elem = document.createElement('canvas');
+    return !!(elem.getContext && elem.getContext('2d'));
+}
+
 // Show the QR-Code of a permalink (when the QR-Code icon is clicked).
-function showQrCode(caller,loading=false)
+function showQrCode(caller,loading)
 {
+    if( !isCanvasSupported() ) return true;
+
     // Dynamic javascript lib loading: We only load qr.js if the QR code icon is clicked:
     if (typeof(qr)=='undefined') // Load qr.js only if not present.
     {
+        loading = typeof loading !== 'undefined' ? loading : false;
         if (!loading)  // If javascript lib is still loading, do not append script to body.
         {
             var element = document.createElement("script");
@@ -101,12 +109,12 @@ function showQrCode(caller,loading=false)
     // Build the div which contains the QR-Code:
     var element = document.createElement('div');
     element.id="permalinkQrcode";
-	// Make QR-Code div commit sepuku when clicked:
-    if ( element.attachEvent ){ element.attachEvent('onclick', 'this.parentNode.removeChild(this);' ); } // Damn IE
-    else { element.setAttribute('onclick', 'this.parentNode.removeChild(this);' ); }
+
+    // Make QR-Code div commit sepuku when clicked:
+    element.addEventListener('click', remove_qrcode ); // Works on every canvas supported browser
 
     // Build the QR-Code:
-    var image = qr.image({size: 8,value: caller.dataset.permalink});
+    var image = qr.image({size: 8,value: caller.getAttribute('data-permalink')});
     if (image)
     {
         element.appendChild(image);