// Browser & Platform Variables
var platform = navigator.platform.substr(0,3);
var browser = navigator.appName;
var shortVersion = navigator.appVersion.substr(0,1);
var longVersion = navigator.appVersion;


nav1On = new Image();
nav1On.src = "images/nav_1_on.gif";
nav1Off = new Image();
nav1Off.src = "images/nav_1.gif";

nav2On = new Image();
nav2On.src = "images/nav_2_on.gif";
nav2Off = new Image();
nav2Off.src = "images/nav_2.gif";

nav3On = new Image();
nav3On.src = "images/nav_3_on.gif";
nav3Off = new Image();
nav3Off.src = "images/nav_3.gif";

nav4On = new Image();
nav4On.src = "images/nav_4_on.gif";
nav4Off = new Image();
nav4Off.src = "images/nav_4.gif";

nav5On = new Image();
nav5On.src = "images/nav_5_on.gif";
nav5Off = new Image();
nav5Off.src = "images/nav_5.gif";

nav6On = new Image();
nav6On.src = "images/nav_6_on.gif";
nav6Off = new Image();
nav6Off.src = "images/nav_6.gif";

nav7On = new Image();
nav7On.src = "images/nav_7_on.gif";
nav7Off = new Image();
nav7Off.src = "images/nav_7.gif";

nav8On = new Image();
nav8On.src = "images/nav_8_on.gif";
nav8Off = new Image();
nav8Off.src = "images/nav_8.gif";


nav_r1On = new Image();
nav_r1On.src = "images/nav_r_1_on.gif";
nav_r1Off = new Image();
nav_r1Off.src = "images/nav_r_1.gif";

nav_r2On = new Image();
nav_r2On.src = "images/nav_r_2_on.gif";
nav_r2Off = new Image();
nav_r2Off.src = "images/nav_r_2.gif";

nav_r3On = new Image();
nav_r3On.src = "images/nav_r_3_on.gif";
nav_r3Off = new Image();
nav_r3Off.src = "images/nav_r_3.gif";

nav_r4On = new Image();
nav_r4On.src = "images/nav_r_4_on.gif";
nav_r4Off = new Image();
nav_r4Off.src = "images/nav_r_4.gif";

nav_r5On = new Image();
nav_r5On.src = "images/nav_r_5_on.gif";
nav_r5Off = new Image();
nav_r5Off.src = "images/nav_r_5.gif";

nav_r6On = new Image();
nav_r6On.src = "images/nav_r_6_on.gif";
nav_r6Off = new Image();
nav_r6Off.src = "images/nav_r_6.gif";

nav_r7On = new Image();
nav_r7On.src = "images/nav_r_7_on.gif";
nav_r7Off = new Image();
nav_r7Off.src = "images/nav_r_7.gif";


// Image replace On Function	
function on(pic) {
	document.images[pic].src = eval(pic + 'On.src');
}
        

// Image replace Off Function	
function off(pic) {
	document.images[pic].src = eval(pic + 'Off.src');
}

function getRandomNum() {
	return (Math.floor(Math.random() * (5 - 1)) + 1);
}