Adapt XML source for a HTML chart system

The project is quite simple for people skilled in JS/JQuery. We need to feed a highstock chart with a predefined XML source. So the project winner has to write a JS wrapper in the html page to retrieve the data from the XML and feed in the right way. Also the HTML page need to refresh its data every x minutes but without rreloading the whole HTML code. Contact me for the URLs of chart example and the XML source