def in_place_editor(field_id, options = {})
function = "new Ajax.InPlaceEditor("
function << "'#{field_id}', "
function << "'#{url_for(options[:url])}'"
js_options = {}
js_options['cancelText'] = %('#{options[:cancel_text]}') if options[:cancel_text]
js_options['okText'] = %('#{options[:save_text]}') if options[:save_text]
js_options['loadingText'] = %('#{options[:loading_text]}') if options[:loading_text]
js_options['rows'] = options[:rows] if options[:rows]
js_options['cols'] = options[:cols] if options[:cols]
js_options['size'] = options[:size] if options[:size]
js_options['externalControl'] = "'#{options[:external_control]}'" if options[:external_control]
js_options['loadTextURL'] = "'#{url_for(options[:load_text_url])}'" if options[:load_text_url]
js_options['ajaxOptions'] = options[:options] if options[:options]
js_options['evalScripts'] = options[:script] if options[:script]
js_options['callback'] = "function(form) { return #{options[:with]} }" if options[:with]
function << (', ' + options_for_javascript(js_options)) unless js_options.empty?
function << ')'
javascript_tag(function)
end