function MainMenuInit() {
   var builder = new DomMenuBuilder();
   builder.setSettings(new Hash(
           'openMouseoverMenuDelay', 1,
           'closeMouseoverMenuDelay', 1,
           //'expandMenuArrowUrl', 'site/images/sub_menu_off.gif',
           'menuBarClass', 'domMenuMain_menuBar',
           'menuElementClass', 'domMenuMain_menuElement',
           'menuElementHoverClass', 'domMenuMain_menuElementHover',
           'menuElementActiveClass', 'domMenuMain_menuElementHover',
           'subMenuBarClass', 'domMenuMain_subMenuBar',
           'subMenuElementClass', 'domMenuMain_subMenuElement',
           'subMenuElementHoverClass', 'domMenuMain_subMenuElementHover',
           'subMenuElementActiveClass', 'domMenuMain_subMenuElementHover',
           'subMenuElementHeadingClass', 'domMenuMain_subMenuElementHeading',
           'menuHolderId', 'domMenu_main'
	       ));
   builder.replace('domMenu_main');
   /* when menu is builded show it */
   document.getElementById('domMenu_main').style.display = 'block';
}