ScriptOptions dropOptions = contributor.buildOptions(context, column);
JSONObject dndParams = new JSONObject();
dropOptions.addOption("dndParams", dndParams.toString());
function.addParameter(dropOptions);
function.appendScript(buffer);
String dropTargetScriptId = column.getClientId(context) + ":"
+ DROP_TARGET_SCRIPT_ID
+ (before ? DROP_TARGET_BEFORE : DROP_TARGET_AFTER);
String scriptContribution = contributor.getScriptContribution(context,