Sort multidimensional array by the 5th field

I h开发者_运维百科ave an array of array (2 dimensions):

var myArray = [
    ["DVD Title 1","label1","releasedate2","details1", 5241.2541],
    ["DVD Title 1","label3","releasedate1","details1", 8452.654],
    ["DVD Title 1","label3","releasedate2","details1", 45465.5465],
    ["DVD Title 1","label2","releasedate1","details1", 451.545],
    ["DVD Title 1","label1","releasedate1","details1", 7458.6545],
    ["DVD Title 2","label2","releasedaten","detailsn", 4545.545],
    ["DVD Title 2","label1","releasedaten","detailsn", 545.545]
];

I want to sort this array, order by ascending, by the 5th field (the float number).

Is it possible?

myArray.sort(function(a,b){
    return a[4] - b[4];
});