Some service provider side give the url out code as <script src="http://servicedomain/service.php?id=xxx"></script> to provide their services. Users who get the code can put the code on the website. When the webpage with the code is opened, the browser which opens the webpage will query the above mentioned webpage "http://servicedomain/service.php?id=xxx" in the code to get the service codes. The service code can be used to direct the browser to get images, texts, hyperlinks and so on.

The <script src="http://servicedomain/service.php?id=xxx"></script> url out code can keep the flexible to future modification. That means browser may get dynamic service codes or updating codes in the future. For examples, the service provider website can know the remote address, client ip, referer url, ..., of the client. The the service provide can determine which service codes should return to the client. The service codes can be nothing, warning message, sig, images, or further url out codes.

If the service code return a imcoming link backward to the service provider website, does this raise the PR of the service provider website. For examples, the service can be "<a href="http://serviceprovider/index><img src="http://serviceprovider/example.gif"><a>", then the browser can get the example.gif image with a hyperlink to the service provider. Of course, the service provide website can be opened whenever the image is clicked. But if you get the source code of the webpage from the browser, you can only see the original url out code "<script src="http://servicedomain/service.php?id=xxx"></script>". My question is whether the google see the url out code "<script src="http://servicedomain/service.php?id=xxx"></script>" or the service code "<a href="http://serviceprovider/index><img src="http://serviceprovider/example.gif"><a>". If the hyperlink wasn't seen by google, the pr maybe not be raised, I guess.

Is the above described <script> url out code can raise pr? Please tell me if you know it.

Haha, this is the same reason why I decided to make the new ConnectMe (see my sig) PHP instead of JavaScript. The reason is that Google and other spiders only look at the source code and not the output, so whatever content you have inside the script tag will not be read.

So in short, no, Google does not know the contents in the script tag.