if (document.images) {
		normal = new Array();
		over = new Array();

		
		normal["button1"] = new Image();
		normal["button1"].src = "images/kaoff.jpg";
		normal["button2"] = new Image();
		normal["button2"].src = "images/hpoff.jpg";
		normal["button3"] = new Image();
		normal["button3"].src = "images/necoff.jpg";
		normal["button4"] = new Image();
		normal["button4"].src = "images/svoff.jpg";
		normal["button5"] = new Image();
		normal["button5"].src = "images/gaoff.jpg";
		normal["button6"] = new Image();
		normal["button6"].src = "images/wdoff.jpg";
		normal["button7"] = new Image();
		normal["button7"].src = "images/contoff.jpg";
		normal["button8"] = new Image();
		normal["button8"].src = "images/navinfo.jpg";
				
		over["button1"] = new Image();
		over["button1"].src = "images/kaon.jpg";
		over["button2"] = new Image();
		over["button2"].src = "images/hpon.jpg";
		over["button3"] = new Image();
		over["button3"].src = "images/necon.jpg";
		over["button4"] = new Image();
		over["button4"].src = "images/svon.jpg";
		over["button5"] = new Image();
		over["button5"].src = "images/gaon.jpg";
		over["button6"] = new Image();
		over["button6"].src = "images/wdon.jpg";
		over["button7"] = new Image();
		over["button7"].src = "images/conton.jpg";
		over["button8"] = new Image();
		over["button8"].src = "images/navinfo2.jpg";


		}

	function msover(imageName) {
			if (document.images) {	
				document.images[imageName].src = over[imageName].src;
			}
		}

	function msout(imageName) {
			if (document.images) {
	                  		document.images[imageName].src = normal[imageName].src;
			}	            
		}