Play It Baby (last.fm)

By Intars Students — Last update Sep 11, 2009 — Installed 110 times. Daily Installs: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2, 0, 2, 0, 0, 1

There are 1 previous version of this script. 

// ==UserScript==
// @name           Play It Baby (last.fm)
// @namespace      the.mobix@gmail.com
// @description    Sort last.fm search results, by playablety
// @include        http://www.last.fm/search*
// ==/UserScript==

var playItBaby = 
{
  sort: function(){
    
    //First are there any result for this search?
    try{
      var trackResults = document.getElementById('trackResults');
    }catch(e){}
    
    if (trackResults != null){
      
      // Okay, try to fetch table rows then
      try{
        var tableRows = trackResults.getElementsByTagName('tr');
      }catch(e){}
      
      var lastID    = 0;
      
      for(var i=0; i<tableRows.length; i++){
        
        // Is this song playable?
        try{
          var findPlayButton = tableRows[i].getElementsByTagName('td')[0].getElementsByTagName('a')[0];
        }catch(e){}
        
        // If so move this up in list (if it not already)
        if (typeof findPlayButton != "undefined"){
          if (i != lastID){
            var tmp = tableRows[i];
            
            tableRows[i].parentNode.removeChild(tableRows[i]);
            tableRows[lastID].parentNode.insertBefore(tmp, tableRows[lastID]);
          }
    
          lastID++;        
        }
      }
      
      // And lastly, fix CSS of table (odd and not odd)
      if (lastID){
        for(var i=0; i<tableRows.length; i++){
          tableRows[i].className = this.isFloat((i + 1) / 2) ? 'odd track' : 'track';
        }
      }
      
      // Done, everybody is happy now!
      
    }else{
      this.log('No results!');
    }
    
  },
  
  isFloat: function(v){
    return !isNaN(v) && isNaN(v+".1");
  },
  
  log: function(msg){
    //GM_log(msg);
  }
  
};

window.addEventListener("load", function() { playItBaby.sort(); }, false);