if you don't want to use the global db as defined in the global.conf then you can specify a name here. make sure that the settings for this db connection are set in the global.conf, even if the connection is not open.
example: $APP['db']['mysql_life']... (so dbSettingName is mysql_life)
lang (The language like "en". We could have texts in different langs.)
string
htmlElementId
htmlElementId (The element id in the html code where the help text gets automatically assigned to. Alternatively it can be a function name that gets called. Example: "alert()" (with brackets, no params).)