var mIndex = 0;
var mItem = 'menu_blue_01';
var menu_on = new Array();
var menu_off = new Array();
var preloadFlag = false;

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}


function changeImages() {   
	if (preloadFlag == true) {
		if (mIndex != changeImages.arguments[2]) {
			if (changeImages.arguments[1] == "off"){
				document[changeImages.arguments[0]].src = menu_off[changeImages.arguments[2]].src;
			} else {
				document[changeImages.arguments[0]].src = menu_on[changeImages.arguments[2]].src;
			}
		}		
	}
}

function selectItem() {
	document[mItem].src = menu_off[mIndex].src;
	document[selectItem.arguments[0]].src = menu_on[selectItem.arguments[1]].src;
	mIndex = selectItem.arguments[1];
	mItem = selectItem.arguments[0];
}

function preloadImages() {
	if (document.images) {
		menu_on[0] = newImage("../images/menu/menu_red_01.jpg");
		menu_on[1] = newImage("../images/menu/menu_red_02.jpg");
		menu_on[2] = newImage("../images/menu/menu_red_03.jpg");
		menu_on[3] = newImage("../images/menu/menu_red_04.jpg");
		menu_on[4] = newImage("../images/menu/menu_red_05.jpg");
		menu_on[5] = newImage("../images/menu/menu_red_06.jpg");
		menu_on[6] = newImage("../images/menu/menu_red_07.jpg");
		menu_on[7] = newImage("../images/menu/menu_red_08.jpg");
		menu_on[8] = newImage("../images/menu/menu_red_09.jpg");
		menu_on[9] = newImage("../images/menu/menu_red_10.jpg");
		menu_on[10] = newImage("../images/menu/menu_red_11.jpg");
		menu_on[11] = newImage("../images/menu/menu_red_12.jpg");

		menu_off[0] = newImage("../images/menu/menu_blue_01.jpg");
		menu_off[1] = newImage("../images/menu/menu_blue_02.jpg");
		menu_off[2] = newImage("../images/menu/menu_blue_03.jpg");
		menu_off[3] = newImage("../images/menu/menu_blue_04.jpg");
		menu_off[4] = newImage("../images/menu/menu_blue_05.jpg");
		menu_off[5] = newImage("../images/menu/menu_blue_06.jpg");
		menu_off[6] = newImage("../images/menu/menu_blue_07.jpg");
		menu_off[7] = newImage("../images/menu/menu_blue_08.jpg");
		menu_off[8] = newImage("../images/menu/menu_blue_09.jpg");
		menu_off[9] = newImage("../images/menu/menu_blue_10.jpg");
		menu_off[10] = newImage("../images/menu/menu_blue_11.jpg");
		menu_off[11] = newImage("../images/menu/menu_blue_12.jpg");
								
		if (preloadFlag == false) {
			document[mItem].src = menu_on[mIndex].src;			
			top.main.location.href = "company_profile.htm";
		}
		
		preloadFlag = true;
	}	
}

function error() {
	return true;
}

window.onerror = error;

function sound() {
	if (navigator.appName=='Netscape')
		document.msound.play(false);
	else 
		document.all.sound.src = '../sound/click.wav';
}