'html_between => '', #optional HTML displayed between the SELECT and the
#layers, scalar or coderef ('field' passed as a param)
'onchange' => '', #javascript code run when the SELECT changes
# ("what" is the element)
'js_only' => 0, #set true to return only the JS portions
'html_only' => 0, #set true to return only the HTML portions
'html_between => '', #optional HTML displayed between the SELECT and the
#layers, scalar or coderef ('field' passed as a param)
'onchange' => '', #javascript code run when the SELECT changes
# ("what" is the element)
'js_only' => 0, #set true to return only the JS portions
'html_only' => 0, #set true to return only the HTML portions