Dynamic Stock Quotes (US)

The project is to provide a simple method to display dynamic Stock Quotes for any given Symbol in a web page when the page loads. I imagine the Stock Symbol will be hard coded into each page that we need to retrieve data for. PHP 4.0 / MySQL is the preferred scripting language and database, possibly with XML ?, JavaScript may be considered as well. Using Yahoo Inc. as an example, Stock Symbol = YHOO .csv Data can be obtained from Yahoo (i.e. [login to view URL];f=sl1d1t1c1ohgvj1pp2wern) These links may also be helpful: [login to view URL] [login to view URL] [login to view URL] This is an Example of a Similar Solution but done in Cold Fusion, may be useful? The Stock Quote will also be used in a simple calculation called '% Change from Launch' which will also be dynamically updated. The formula is (Stock Quote - Launch Price)/Launch Price = % Change from Launch. A sample page is attached. We will need to be able to apply the solution provided to any web page for new stocks we're displaying data for. Please provide examples of similar dynamic data work you've completed, stock quotes preferred, but not necessary. Thank you,