Ubiquity command: How Stuff Works Search or random article

//Ubiquity command to:
//1. search for an article on How Stuff Works or
//2. look at a random article from How Stuff Works
CmdUtils.CreateCommand({
  name:"hsw",
  takes:{"searchTerm":noun_arb_text},
  icon:"http://www.howstuffworks.com/favicon.ico",
  author: { name: "Nanya Bizuidenhoud", email: "netsuke87@yahoo.com"},
  description: "Get a random article from <a href=\"http://www.howstuffworks.com\">Howstuffworks.com</a> howstuffworks or search for a given article",
  help: "Type r or R for a random article or simply enter a keyword to search for a specific article",
 preview: function(pblock,searchTerm)
{
 pblock.innerHTML="Type r or R for a random article \n or search howstuffworks.com for: "+searchTerm.text;
},
execute: function(searchTerm)
{
  if(searchTerm.text==="r" || searchTerm.text==="R")
  {
     var rand="http://health.howstuffworks.com/random-article";
     Utils.openUrlInBrowser(rand);
     displayMessage( "Retrieving random article..." );
  }
  else
 {
     var site="http://www.howstuffworks.com/search.php?terms=";
     Utils.openUrlInBrowser(site+searchTerm.text+"&x=0&y=0");
 }
}
})