Using anything else means that the same tab could and probably would be reused for each value.
And Beverley is right. If the script tag used in the example is valid in a given page's DOCTYPE, then target is valid as well, so there's no point to it like that. It would need to have the type attribute specified:
<script> as was offered.
@Crazykld69 - In the future, please think these sorts of things through before posting misleading/incomplete/unnecessary/invalid* solutions.
*Invalid in the sense that it's against standards.