function makeArray(len) {
   for (var i = 0; i < len; i++) this[i] = null;
this.length = len;
}

aerialpics = new makeArray(12);

aerialpics[0]='images/aerial1.jpg';
aerialpics[1]='images/aerial2.jpg';
aerialpics[2]='images/aerial3.jpg';
aerialpics[3]='images/aerial4.jpg';
aerialpics[4]='images/aerial5.jpg';
aerialpics[5]='images/aerial6.jpg';
aerialpics[6]='images/aerial7.jpg';
aerialpics[7]='images/aerial8.jpg';
aerialpics[8]='images/aerial9.jpg';
aerialpics[9]='images/aerial10.jpg';
aerialpics[10]='images/aerial2.1.jpg';
aerialpics[11]='images/aerial2.2.jpg';