bossfighter API
    ---------------
    
    This script allows you to compare two terms and find out how many search
    results can be found for them in Yahoo. You have several URL parameters:
    
    t1:       the first term (needs to be words and spaces, everything else 
              is filtered out)
    t2:       the second term (needs to be words and spaces, everything 
              else is filterd out)
    callback: the name of a JavaScript method to wrap the JSON return in - 
              JSON-P I guess you can call it.
    format:   If format is set to html the API returns a text string. If
              it isn't set, it returns a JSON object with a JavaScript header.
              This allows you to use this script as a form action (with a 
              hidden for field called format) and override this normal 
              behaviour with JavaScript.
               
     The JSON output has the following properties:
     
     winner:      The term that had more search results than the other.
     winnervalue: The amount of serarch results of the winner.
     loser:       The term that had less search results than the other.
     loservalue: The amount of serarch results of the loser.
     by:        The difference in search results between winner and loser.
     
     If you want to use this script in a very easy fashion with JavaScript, 
     check out bossfighter.js, too.
     
     Try this:   
     
     * bossfighter.php?t1=smurfs&t2=lettuce&callback=yay
     
     * bossfighter.php?t1=pig&t2=lipstick&format=html
     
     * bossfighter.php?t1=earth&t2=flying saucers&callback=scifi
     
     Chris