[jeroenhd]

If you use a custom select, update your <datalist>, you should be good, shouldn't you?

There are UI components that are not available in native browser controls (infuriatingly: some are only available in some browsers on some platforms), but even then you're better off writing a shim to replicate normal browser behaviour than ruining the experience for everyone because Firefox on Android doesn't have a colour picker.

[mireq2]

No. I need something like <option value="123"><img src="...">Mars</option> - separated internal representation and value and dynamically updated. If i can fit whole list to client memory why should i choose datalist over select?