自定义排序问题

今天遇到个问题，对于新手的我来说，感觉很纳闷，自定义排序方法毫无用处。找不着原因纠结了非常久，最后一一对比终于发现问题的所在。

var bands:Array = ['Adobe','BBC','Microsoft','The Apple','The Google','The kingdom'];

bands.sort(bandSort);

trace(bands);

function bandSort(band1:String,band2:String):int
{
    band1 = band1.toLowerCase();
    band2 = band2.toLowerCase();
    if (band1.substr(0,4) == 'the')
    {
        band1 = band1.substr(4);
        
    }
    if(band2.substr(0,4) == 'the')  //问题的原因为 'the '没加空格
    {
        band2 = band2.substr(4);
    }
    if (band1 < band2)
    {
        return -1;
    }
    else
    {
        return 1;
    }
}