var i;
var menuImg1 = new Image();
var menuImg2 = new Image();
var menuImg3 = new Image();
var menuImg4 = new Image();
var menuImg5 = new Image();
var menuImg6 = new Image();
var menuImg7 = new Image();
var menuImg8 = new Image();
var menuImg9 = new Image();
var menuImg10 = new Image();
var menuImg11 = new Image();
var arrMenuImg = new Array(menuImg1,menuImg2,menuImg3,menuImg4,menuImg5,menuImg6,menuImg7,menuImg8,menuImg9,menuImg10,menuImg11);

for(i=0; i<11; i++){
	arrMenuImg[i].src = "Images/menu" + (i+1) + "_alt.gif";
}

function chMenuImg(num, flg){
var obj = document.getElementById("menu" + num);
	if(flg){
		obj.src = arrMenuImg[num-1].src;
	}else{
		obj.src = "Images/menu" + num + ".gif";
	}
}

function chMenuImg2(idx){
var obj = document.getElementById("menu3");
	if(idx==1){
		obj.src = "Images/menu3_alt2.gif";
	}else if(idx==2){
		obj.src = "Images/menu3_alt3.gif";
	}else{
		obj.src = "Images/menu3.gif";
	}
}