If you have two (or even more) web domains pointing to the same server resource, you should purchase multiple licenses for each domain name.
Note: If all other domains will be redirected to domain1.com, in other words, the browser address bar will finally only be domain1.com, then you only need one license for the domain1.com.
Add multiple licenses to the same script
Open the script responsive-tabs.js with Notepad, and update it to the following:
var rtabsGlobalOptions = {
......
license: "license1"
};
if(document.domain.indexOf("domain2.com") != -1) rtabsGlobalOptions.license = "license2";
/* Responsive Tabs v2014.12.23. Copyright www.menucool.com */
var tabbers=…(remain untouched)…
If you have more than two domains, the added code shown in above block will be like:
if(document.domain.indexOf("domain2.com") != -1) rtabsGlobalOptions.license = "license2";
else if(document.domain.indexOf("domain3.com") != -1) rtabsGlobalOptions.license = "license3”;