nav1_off = new Image;
nav1_off.src = "static_image/square_off.gif";
nav1_over = new Image;
nav1_over.src = "static_image/square_over.gif";
nav2_off = new Image;
nav2_off.src = "static_image/square_off.gif";
nav2_over = new Image;
nav2_over.src = "static_image/square_over.gif";
nav3_off = new Image;
nav3_off.src = "static_image/square_off.gif";
nav3_over = new Image;
nav3_over.src = "static_image/square_over.gif";
nav4_off = new Image;
nav4_off.src = "static_image/square_off.gif";
nav4_over = new Image;
nav4_over.src = "static_image/square_over.gif";
nav5_off = new Image;
nav5_off.src = "static_image/square_off.gif";
nav5_over = new Image;
nav5_over.src = "static_image/square_over.gif";
nav6_off = new Image;
nav6_off.src = "static_image/square_off.gif";
nav6_over = new Image;
nav6_over.src = "static_image/square_over.gif";
nav7_off = new Image;
nav7_off.src = "static_image/square_off.gif";
nav7_over = new Image;
nav7_over.src = "static_image/square_over.gif";
nav8_off = new Image;
nav8_off.src = "static_image/square_off.gif";
nav8_over = new Image;
nav8_over.src = "static_image/square_over.gif";
nav9_off = new Image;
nav9_off.src = "static_image/square_off.gif";
nav9_over = new Image;
nav9_over.src = "static_image/square_over.gif";
nav10_off = new Image;
nav10_off.src = "static_image/square_off.gif";
nav10_over = new Image;
nav10_over.src = "static_image/square_over.gif";
nav11_off = new Image;
nav11_off.src = "static_image/square_off.gif";
nav11_over = new Image;
nav11_over.src = "static_image/square_over.gif";
nav12_off = new Image;
nav12_off.src = "static_image/square_off.gif";
nav12_over = new Image;
nav12_over.src = "static_image/square_over.gif";
nav13_off = new Image;
nav13_off.src = "static_image/square_off.gif";
nav13_over = new Image;
nav13_over.src = "static_image/square_over.gif";
nav14_off = new Image;
nav14_off.src = "static_image/square_off.gif";
nav14_over = new Image;
nav14_over.src = "static_image/square_over.gif";
nav15_off = new Image;
nav15_off.src = "static_image/square_off.gif";
nav15_over = new Image;
nav15_over.src = "static_image/square_over.gif";
nav16_off = new Image;
nav16_off.src = "static_image/square_off.gif";
nav16_over = new Image;
nav16_over.src = "static_image/square_over.gif";
nav17_off = new Image;
nav17_off.src = "static_image/square_off.gif";
nav17_over = new Image;
nav17_over.src = "static_image/square_over.gif";
nav18_off = new Image;
nav18_off.src = "static_image/square_off.gif";
nav18_over = new Image;
nav18_over.src = "static_image/square_over.gif";
nav19_off = new Image;
nav19_off.src = "static_image/square_off.gif";
nav19_over = new Image;
nav19_over.src = "static_image/square_over.gif";
nav20_off = new Image;
nav20_off.src = "static_image/square_off.gif";
nav20_over = new Image;
nav20_over.src = "static_image/square_over.gif";
nav21_off = new Image;
nav21_off.src = "static_image/square_off.gif";
nav21_over = new Image;
nav21_over.src = "static_image/square_over.gif";
nav22_off = new Image;
nav22_off.src = "static_image/square_off.gif";
nav22_over = new Image;
nav22_over.src = "static_image/square_over.gif";
nav23_off = new Image;
nav23_off.src = "static_image/square_off.gif";
nav23_over = new Image;
nav23_over.src = "static_image/square_over.gif";
nav24_off = new Image;
nav24_off.src = "static_image/square_off.gif";
nav24_over = new Image;
nav24_over.src = "static_image/square_over.gif";
nav25_off = new Image;
nav25_off.src = "static_image/square_off.gif";
nav25_over = new Image;
nav25_over.src = "static_image/square_over.gif";

function swap (number,state) {
    var navName="nav"+number;
    document.images[navName].src=eval(navName+"_"+state+".src");
		
}