snav1 = new Image();
snav1.src = "images/snav_af1.gif";
snav1_hi = new Image();
snav1_hi.src = "images/snav_af1_hi.gif";

snav2 = new Image();
snav2.src = "images/snav_af2.gif";
snav2_hi = new Image();
snav2_hi.src = "images/snav_af2_hi.gif";

snav3 = new Image();
snav3.src = "images/snav_af3.gif";
snav3_hi = new Image();
snav3_hi.src = "images/snav_af3_hi.gif";

snav4 = new Image();
snav4.src = "images/snav_af4.gif";
snav4_hi = new Image();
snav4_hi.src = "images/snav_af4_hi.gif";

snav5 = new Image();
snav5.src = "images/snav_af5.gif";
snav5_hi = new Image();
snav5_hi.src = "images/snav_af5_hi.gif";

snav6 = new Image();
snav6.src = "images/snav_af6.gif";
snav6_hi = new Image();
snav6_hi.src = "images/snav_af6_hi.gif";