displayValueProcess.js

import("system.db");
import("system.result");
import("system.vars");
import("Attribute_lib");

var attrType = AttributeHandler.begin(vars.get("$field.AB_ATTRIBUTE_ID")).getAttributeType();

if (attrType == $AttributeTypes.COMBO)
    result.string(AttributeUtil.getSimpleAttributeName(vars.get("$field.ID_VALUE")));
else
    result.string(vars.get("$field.ATTRIBUTERELATION_VALUE"));