function BuildArray()
{
this.size = length;
for (var i = 0; i < length; i++)
this[i] = 0;
}
spruch = new BuildArray(24);
spruch[0] = "Guten Morgen";
spruch[1] = "Guten Morgen";
spruch[2] = "Guten Morgen";
spruch[3] = "Guten Morgen";
spruch[4] = "Guten Morgen";
spruch[5] = "Guten Morgen";
spruch[6] = "Guten Morgen";
spruch[7] = "Guten Morgen";
spruch[8] = "Guten Morgen";
spruch[9] = "Guten Morgen";
spruch[10] = "Guten Morgen";
spruch[11] = "Hallo";
spruch[12] = "Hallo";
spruch[13] = "Hallo";
spruch[14] = "Hallo";
spruch[15] = "Hallo";
spruch[16] = "Hallo";
spruch[17] = "Hallo";
spruch[18] = "Guten Abend";
spruch[19] = "Guten Abend";
spruch[20] = "Guten Abend";
spruch[21] = "Guten Abend";
spruch[22] = "Guten Abend";
spruch[23] = "Guten Abend";

act_hour = new Date();
act_hour = act_hour.getHours();
act_min = new Date();
act_min =  act_min.getMinutes();

document.write(spruch[act_hour]);