title: Mongoose query is returning 'undefined'`
body: <p>I am making a mongo query using the following mongoose syntax....</p>
  
  <pre><code>                // Log the search
                  console.log("Searching for: " + lName);
  
                  query.where('lname', lName)
                  query.exec(function(err,results){
                          //Check for an err
                          if(err){
                                  // Send the err
                                  res.send(err);
  
                                  // Log the err
                                  console.log(err);
                          } else { 
                                  // Send the query results
                                  res.send(results);
  
                                  // Log the results
                                  console.log(results);
                          }
                  });
  </code></pre>
  
  <p>The query is returning this....</p>
  
  <pre><code>URL: /api/search/customers/?lname=Last+Name // My variable
  Query contents = Last Name // My variable
  ReferenceError: lname is not defined
      at /home/collin/Documents/code/webdev/loyalty-app/api.js:311:12
      at callbacks (/home/collin/node_modules/express/lib/router/index.js:272:11)
      at param (/home/collin/node_modules/express/lib/router/index.js:246:11)
      at pass (/home/collin/node_modules/express/lib/router/index.js:253:5)
      at Router._dispatch (/home/collin/node_modules/express/lib/router/index.js:280:4)
      at Object.handle (/home/collin/node_modules/express/lib/router/index.js:45:10)
      at next (/home/collin/node_modules/express/node_modules/connect/lib/http.js:204:15)
      at Object.methodOverride [as handle] (/home/collin/node_modules/express/node_modules/connect/lib/middleware/methodOverride.js:35:5)
      at next (/home/collin/node_modules/express/node_modules/connect/lib/http.js:204:15)
      at Object.bodyParser [as handle] (/home/collin/node_modules/express/node_modules/connect/lib/middleware/bodyParser.js:88:61)
  </code></pre>
  
  <p>I am running this query out of a If, else if, else statement and the query works perfect when I run it like this, and with just the first name...</p>
  
  <pre><code>                // Log the search       
                  console.log("Searching for: " + fName + "," + lName);
  
                  query.where('fname', fName)
                  query.where('lname', lName)
                  query.exec(function(err, results){
                          // Check for an error   
                          if(err){
                                  //Send the err
                                  res.send(err);
  
                                  // Log the error
                                  console.log(err);
                          } else{
                                  // Send the results of the query
                                  res.send(results);
  
                                  // Log the results
                                  console.log(results);
                          }
                  })
  </code></pre>
  
  <p>Here is a sample of what the DB doc looks like...</p>
  
  <pre><code> { fname: 'First Name',
     lname: 'Last Name'}
  </code></pre>