image1 = new Image();
image1.src = "imagesmain/ro_radar_01.gif";

image2 = new Image();
image2.src = "imagesmain/ro_radar_02.gif";

image3 = new Image();
image3.src = "imagesmain/ro_radar_03.gif";

image4 = new Image();
image4.src = "imagesmain/ro_radar_04.gif";

image5 = new Image();
image5.src = "imagesmain/ro_radar_05.gif";

image6 = new Image();
image6.src = "imagesmain/ro_highway_01.gif";

image7 = new Image();
image7.src = "imagesmain/ro_highway_02.gif";

image8 = new Image();
image8.src = "imagesmain/ro_highway_03.gif";

image9 = new Image();
image9.src = "imagesmain/ro_highway_04.gif";

image10 = new Image();
image10.src = "imagesmain/ro_highway_05.gif";

image11 = new Image();
image11.src = "imagesmain/ro_plane_01.gif";

image12 = new Image();
image12.src = "imagesmain/ro_plane_02.gif";

image13 = new Image();
image13.src = "imagesmain/ro_plane_03.gif";

image14 = new Image();
image14.src = "imagesmain/ro_plane_04.gif";

image15 = new Image();
image15.src = "imagesmain/ro_plane_05.gif";

image16 = new Image();
image16.src = "imagesmain/ro_ruins_01.gif";

image17 = new Image();
image17.src = "imagesmain/ro_ruins_02.gif";

image18 = new Image();
image18.src = "imagesmain/ro_ruins_03.gif";

image19 = new Image();
image19.src = "imagesmain/ro_ruins_04.gif";

image20 = new Image();
image20.src = "imagesmain/ro_ruins_05.gif";