lib/google.js
function google (query, start, callback) {
  var startIndex = 0
  if (typeof callback === 'undefined') {
    callback = start
  } else {
    startIndex = start
  }
  igoogle(query, startIndex, callback)
}
function google (query, start, callback) {
  var startIndex = 0
  if (typeof callback === 'undefined') {
    callback = start
  } else {
    startIndex = start
  }
  igoogle(query, startIndex, callback)
}
function google ( query , start , callback ) { var startIndex = 0 if ( typeof callback === 'undefined' ) { callback = start } else { startIndex = start } igoogle ( query , startIndex , callback ) }
start parameter is optional
start parameter is optional