I have tried placing the suggested code but instead of a top menu drop down, all menu items are displayed at once.
Here is my modified code using the Top simple navigation + left subnavigation template:
{process_pagedata}
{* Change lang="en" to the language of your site *}
{sitename} - {title}
{* The sitename is changed in Site Admin/Global settings. {title} is the name of each page *}
{metadata}
{* Don't remove this! Metadata is entered in Site Admin/Global settings. *}
{stylesheet}
{* This is how all the stylesheets attached to this template are linked to *}
{cms_selflink dir="start" rellink=1}
{cms_selflink dir="prev" rellink=1}
{cms_selflink dir="next" rellink=1}
{* Relational links for interconnections between pages, good for accessibility and Search Engine Optmization *}
{literal}
=b){nw=b+"px";}if(w
#pagewrapper {width:expression(P7_MinMaxW(720,960));}
#container {height: 0%;}
{/literal}
{* The min and max page width for Internet Explorer is set here. For other browsers it's in the stylesheet "Layout: Top menu + 2 columns" *}
{* start accessibility skip links *}
{anchor anchor='menu_vert' title='Skip to navigation' accesskey='n' text='Skip to navigation'}
{anchor anchor='main' title='Skip to content' accesskey='s' text='Skip to content'}
{* end accessibility skip links *}
{* Horizontal ruler that is hidden for visual browsers by CSS *}
{* Start Header, with logo image that links to the default start page. Logo image is changed in the stylesheet "For template: Top menu + left submenu + 1 column" *}
{cms_selflink dir="start" text="$sitename"}
{* End Header *}
{* Start Navigation *}
Navigation
{menu template='cssmenu.tpl'}
{* End Navigation *}
{* Start Search *}
{search}
-->
{* End Search *}
{* Start Breadcrumbs *}
{breadcrumbs starttext='You are here' root='Home' delimiter='»'}
-->
{* End Breadcrumbs *}
{* Start Content (Navigation and Content columns) *}
{* Start Sidebar *}
{* Start Sub Navigation *}
Sub Navigation
{* NB! The below is only added because several default templates use the same menu stylesheet, to "force" the subnavigation to act as if it's the second level in a list *}
{menu template='simple_navigation.tpl' start_level='2' collapse='1'}
{* End Sub Navigation *}
{* End Sidebar *}
{* Start Content Area *}
{print showbutton=true script=true}
{title}-->
{content}
{* Start relational links *}
{anchor anchor='main' text='^ Top'}
{cms_selflink dir="previous" label="Previous page: "}
{cms_selflink dir="next"}
-->
{* The label parameter doesn't need to be there if you're using English, but is here to show how it's used if you don't want the English text "Previous page" *}
{* End relational links *}
{* End Content Area *}
{* End Content *}
{* Start Footer. Edit the footer in the Global Content Block called "footer" *}
{global_content name='footer'}
{* End Footer *}
{* end pagewrapper *}
You can view my results here:
http://www.smhscs.org/newweb/index.php?page=about-smhs
Perhaps you can see where I have made an error?
Elkman