vendor/DocumentUp/documentup.js
function each(a, fn) {
      var i = 0, l = a.length
      for (; i < l; i++) fn.call(null, a[i])
    }
function each(a, fn) {
      var i = 0, l = a.length
      for (; i < l; i++) fn.call(null, a[i])
    }
function each ( a , fn ) { var i = 0 , l = a . length for ( ; i < l ; i ++ ) fn . call ( null , a [ i ] ) }
not quite as fast as inline loops in older browsers so don't use liberally
not quite as fast as inline loops in older browsers so don t use liberally