hillcrest_01_on = new Image();
hillcrest_02_on = new Image();
hillcrest_03_on = new Image();
hillcrest_04_on = new Image();
hillcrest_05_on = new Image();
hillcrest_06_on = new Image();
hillcrest_07_on = new Image();

hillcrest_01_off = new Image();
hillcrest_02_off = new Image();
hillcrest_03_off = new Image();
hillcrest_04_off = new Image();
hillcrest_05_off = new Image();
hillcrest_06_off = new Image();
hillcrest_07_off = new Image();

hillcrest_01_on.src = "/images/navigation1-dn_01.gif";
hillcrest_02_on.src = "/images/navigation1-dn_02.gif";
hillcrest_03_on.src = "/images/navigation1-dn_03.gif";
hillcrest_04_on.src = "/images/navigation1-dn_04.gif";
hillcrest_05_on.src = "/images/navigation1-dn_05.gif";
hillcrest_06_on.src = "/images/navigation1-dn_06.gif";
hillcrest_07_on.src = "/images/navigation1-dn_07.gif";

hillcrest_01_off.src = "/images/navigation1_01.gif";
hillcrest_02_off.src = "/images/navigation1_02.gif";
hillcrest_03_off.src = "/images/navigation1_03.gif";
hillcrest_04_off.src = "/images/navigation1_04.gif";
hillcrest_05_off.src = "/images/navigation1_05.gif";
hillcrest_06_off.src = "/images/navigation1_06.gif";
hillcrest_07_off.src = "/images/navigation1_07.gif";

function swapImg(N, S) {document.images[N].src = eval(S+".src");}