var aryImages = new Array(10);
		
		aryImages[0] = "images/Btn_MainPage_Off.gif";	
		aryImages[1] = "images/Btn_MainPage_On.gif";	
		aryImages[2] = "images/Btn_Armada_Off.gif";	
		aryImages[3] = "images/Btn_Armada_On.gif";	
		aryImages[4] = "images/Btn_Bruce_Off.gif";	
		aryImages[5] = "images/Btn_Bruce_On.gif";	
		aryImages[6] = "images/Btn_Ray_Off.gif";	
		aryImages[7] = "images/Btn_Ray_On.gif";	
		aryImages[8] = "images/Btn_Romeo_Off.gif";	
		aryImages[9] = "images/Btn_Romeo_On.gif";	
		aryImages[10] = "images/Btn_Washington_Off.gif";	
		aryImages[11] = "images/Btn_Washington_On.gif";	
		
		for (i = 0; i < aryImages.length; i++) {
			var preload = new Image();
			preload.src = aryImages[i];
		}
		
		function DoBtn(btnName, Oper) {
			switch(btnName) {
				case "btnMain":
					if (Oper == "on") {
						document[btnName].src = aryImages[1];
					} else {
						document[btnName].src = aryImages[0];
					}
					break;
				case "btnArmada":
					if (Oper == "on") {
						document[btnName].src = aryImages[3];
					} else {
						document[btnName].src = aryImages[2];
					}
					break;
				case "btnBruce":
					if (Oper == "on") {
						document[btnName].src = aryImages[5];
					} else {
						document[btnName].src = aryImages[4];
					}
					break;
				case "btnRay":
					if (Oper == "on") {
						document[btnName].src = aryImages[7];
					} else {
						document[btnName].src = aryImages[6];
					}
					break;
				case "btnRomeo":
					if (Oper == "on") {
						document[btnName].src = aryImages[9];
					} else {
						document[btnName].src = aryImages[8];
					}
					break;
				case "btnWashington":
					if (Oper == "on") {
						document[btnName].src = aryImages[11];
					} else {
						document[btnName].src = aryImages[10];
					}
					break;
			}
		}