| 摘要 |
In one aspect, there is provided a method for polling, by a script at a browser, one or more servers by sending messages to the one or more servers. The one or more messages may solicit one or more bids for presenting an ad at the browser. The one or more messages may also enable access to information at the browser. The information may be relevant to the one or more servers making the one or more bids. The script may receive one or more responses from the one or more servers. The one or more responses include the one or more bids. The script may also evaluate the one or more bids, and select one of the bids based on the evaluation.
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