function switcher(video)
{
    console.log("Start: " + video.start);
    console.log("Ende: " + video.ende);

    if(video.start <= video.ende) // Not working correctly
    {
        console.log("Start");
    }
    else
    {
        console.log("End");
    }
}

console.log: addon: Start: 1
console.log: addon: End: 3
console.log: addon: Start

console.log: addon: Start: 9
console.log: addon: End: 10
console.log: addon: End