Try the following:
function load() { var feed ="http://feeds.bbci.co.uk/news/uk/rss.xml"; new GFdynamicFeedControl(feed, "feedControl", {numResults:8}); } google.load("feeds", "1"); google.setOnLoadCallback(load);
Example: jsFiddle
This thread assumes a lack of documentation because GFdynamicFeedControl no longer under active development. Instead, they recommend using the Google Feed API .
Regardless, I found the answer in the JS source code . Also note that in addition to passing numResults, you can set a set of parameters:
this.options = { numResults : GFdynamicFeedControl.DEFAULT_NUM_RESULTS, feedCycleTime : GFdynamicFeedControl.DEFAULT_FEED_CYCLE_TIME, linkTarget : google.feeds.LINK_TARGET_BLANK, displayTime : GFdynamicFeedControl.DEFAULT_DISPLAY_TIME, transitionTime : GFdynamicFeedControl.DEFAULT_TRANSISTION_TIME, transitionStep : GFdynamicFeedControl.DEFAULT_TRANSISTION_STEP, fadeOutTime: GFdynamicFeedControl.DEFAULT_FADEOUT_TIME, scrollOnFadeOut : true, pauseOnHover : true, hoverTime : GFdynamicFeedControl.DEFAULT_HOVER_TIME, autoCleanup : true, transitionCallback : null, feedTransitionCallback : null, feedLoadCallback : null, collapseable : false, sortByDate : false, horizontal : false, stacked : false, title : null };
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