file_get_contents then perform javascript. possible?

[eluser]GSV Sleeper Service[/eluser]

Code:

alert(elem.src);

should do the trick. I recommend you install 'firebug' then you can use

Code:

console.log(elem.src);

the trouble with using alert() is sooner or later you'll end up alerting() in an infinite loop, which is never fun.
I don't understand part B of your question.