title: Using jQuery to access an element's text from an iframe hosted by Google Docs
body: <p>I'm writing a code segment to strip information out of an iframe hosting a google docs PowerPoint presentation. Basically, I need to note how long each user spends on each slide in the hosted doc, which means I need to know when they jump to a new slide to start the timer over. I figured I'd be able to do this by accessing the slide number within the iframe using jQuery, but I've learned that because of cross-domain scripting issues, this is no easy (if even possible) feat. </p>
  
  <p>I've looked into using cross-domain messaging, but if I'm understanding correctly, that's a no-go because of my inability to control Google's servers (drat.) My next solution will probably be to turn the PowerPoints into PNG's and build a simple PNG viewer to give me full control, but if anyone has a solution where I could host the document on Google and still be able to monitor time spent on each slide, I'd be grateful!</p>