Attributes
  Most of the functions
  take attributes that specify or modify
  their behavior. Attributes to Smarty functions are much like HTML
  attributes. Static values don't have to be enclosed in quotes, but it
  is recommended for literal strings. Variables may also be used, and
  should not be in quotes.
 
  Some attributes require boolean values (true or false). These can be
  specified as either unquoted true,
  on, and yes, or
  false, off, and
  no.
 
| Example 3-4. function attribute syntax | {include file='header.tpl'}
{include file='header.tpl' attrib_name='attrib value'}
{include file=$includeFile}
{include file=#includeFile# title='Smarty is cool'}
{html_select_date display_days=yes}
{mailto address='smarty@example.com'}
<select name='company_id'>
  {html_options options=$companies selected=$company_id}
</select> | 
 |