Inseriti js per laccessibilità

Rinominata cartella immagini da ubuntu a light e aggiornato il css
Modificato lhead delle pagine per caricare i file js per laccessibilità
Riscritto header.html per renderlo identico a quello del forum, e aggiornato il css con particolare cura per le medaglie, come da bug #1020259

forum/skins/light/media/js/accessibility.js

+/*
+** This file contains function to enable and
+** disable Accessibility stylesheet in ubuntu-it
+*/
+
+//ACCESSIBILITY_CSS_THEME_DIR = 'light-drupal-theme/styles';
+//ACCESSIBILITY_CSS_FILE_NAME = 'accessibility.css' ;
+ACCESSIBILITY_CSS_ABSPATH = ['http://ubuntu-it.org/sites/all/themes/light-drupal-theme/styles/accessibility.css'];
+ACCESSIBILITY_COOKIE_VALUE_ON = 'on';
+ACCESSIBILITY_COOKIE_VALUE_OFF = 'off';
+
+// This function adds the accessibility css into the Head section
+// and set the cookie value ON
+function accessibility_set_on () {
+
+  head = document.getElementsByTagName('head')[0];
+  
+  for (i = 0; i < ACCESSIBILITY_CSS_ABSPATH.length ; i++) {
+    link = document.createElement('link');
+    link.setAttribute('type','text/css');
+    link.setAttribute('rel', 'stylesheet');
+    link.setAttribute('media', 'screen');
+    link.setAttribute('href', ACCESSIBILITY_CSS_ABSPATH[i]);
+    head.appendChild(link);
+  }
+  set_cookie_accessibility( ACCESSIBILITY_COOKIE_VALUE_ON );
+}
+
+// This function removes the accessibility css from the Head section
+// and set the cookie value OFF
+function accessibility_set_off() {
+  head = document.getElementsByTagName('head')[0];
+  links = head.getElementsByTagName('link');
+  links_to_remove = []
+  for (i = 0 ; i < links.length ; i++) {
+    link = links[i];
+    if (link.getAttribute('type') == 'text/css') {
+      for (j = 0 ; j < ACCESSIBILITY_CSS_ABSPATH.length ; j++) {
+        if (link.getAttribute('href').indexOf(ACCESSIBILITY_CSS_ABSPATH[j]) >= 0 ) {
+          links_to_remove.push(link);
+        }
+      }
+    }
+  }
+  for (i = 0; i < links_to_remove.length; i++) {
+    head.removeChild(links_to_remove[i]);
+  }
+  set_cookie_accessibility( ACCESSIBILITY_COOKIE_VALUE_OFF );
+}
+
+
+function accessibility_toggle () {
+  value = get_cookie_accessibility();
+
+  // If accessibility is ON, remove the css stylesheet
+  if (value == ACCESSIBILITY_COOKIE_VALUE_ON)
+    accessibility_set_off();
+  else
+    accessibility_set_on();
+}
+
+// The main function
+function accessibility () {
+    value = get_cookie_accessibility();
+
+  // If accessibility is ON, add the css stylesheet
+  if (value == ACCESSIBILITY_COOKIE_VALUE_ON)
+    accessibility_set_on();
+}
+

forum/skins/light/media/js/cookies.js

+// Common variabiles
+COOKIE_DOMAIN = "ubuntu-it.org";
+COOKIE_PREFIX = "ubuntu-it_custom_";
+COOKIE_ACCESIBILITY_NAME = "accessibility";
+
+
+// Start Cookie in browser functions
+function set_cookie ( name, value, expires, path, domain, secure )
+{
+  name = COOKIE_PREFIX + name;
+  var cookie_string = name + "=" + escape ( value );
+
+  if ( expires ) {
+    cookie_string += "; expires=" + expires.toGMTString();
+  }
+  else {
+    var expires = new Date ( 2100, 1, 1); // never expires
+    cookie_string += "; expires=" + expires.toGMTString();
+  }
+
+  if ( path )
+        cookie_string += "; path=" + escape ( path );
+  else
+        cookie_string += "; path=" + escape ("/")
+
+  if ( domain )
+        cookie_string += "; domain=" + escape ( domain );
+  else
+//        cookie_string += "; domain=" + escape (location.host)
+        cookie_string += "; domain=" + escape (COOKIE_DOMAIN);
+  
+  if ( secure )
+        cookie_string += "; secure";
+  document.cookie = cookie_string;
+}
+
+function delete_cookie ( cookie_name ) {
+  cookie_name = COOKIE_PREFIX + cookie_name;
+  var cookie_date = new Date ( );  // current date & time
+  cookie_date.setTime ( cookie_date.getTime() - 1 );
+  document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
+}
+
+function get_cookie ( cookie_name ) {
+  cookie_name = COOKIE_PREFIX + cookie_name;
+  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );
+  if ( results )
+    return ( unescape ( results[2] ) );
+  else
+    return null;
+}
+// End Cookie in browser functions
+
+
+
+// Accessibility
+function set_cookie_accessibility (cookie_value) {
+  cookie_name = COOKIE_ACCESIBILITY_NAME;
+  set_cookie (cookie_name, cookie_value);
+}
+
+function get_cookie_accessibility () {
+  cookie_name = COOKIE_ACCESIBILITY_NAME;
+  return get_cookie (cookie_name);
+}
+