var img = new Array;

img[0] = "banner/1.gif";
img[1] = "banner/2.gif";
img[2] = "banner/3.gif";

function random_img(){
        var i = myrandom(img.length) - 1;
        document.write("<IMG SRC=\""+img[i]+"\" width=\"120\" height=\"182\">");
}

function myrandom(max){
        var v = max * Math.random();
        if(v == 0.0){v = 1;}else{v = Math.ceil(v);}
        return v;
}

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

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		header_03_on = newImage("images/header_03_on.gif");
		header_07_on = newImage("images/header_07_on.gif");
		header_10_on = newImage("images/header_10_on.gif");
		header_11_on = newImage("images/header_11_on.gif");
		header_12_on = newImage("images/header_12_on.gif");
		header_13_on = newImage("images/header_13_on.gif");
		header_14_on = newImage("images/header_14_on.gif");
		header_15_on = newImage("images/header_15_on.gif");
		header_16_on = newImage("images/header_16_on.gif");
		preloadFlag = true;
	}
}

var preloadFlag2 = false;
function preloadImages2() {
	if (document.images) {
		festival_button1_on = newImage("images/festival_button1_on.gif");
		festival_button2_on = newImage("images/festival_button2_on.gif");
		festival_button3_on = newImage("images/festival_button3_on.gif");
		festival_button4_on = newImage("images/festival_button4_on.gif");
		festival_button5_on = newImage("images/festival_button5_on.gif");
		preloadFlag2 = true;
	}
}

var preloadFlag3 = false;
function preloadImages3() {
	if (document.images) {
		information_button1_on = newImage("images/information_button1_on.gif");
		information_button2_on = newImage("images/information_button2_on.gif");
		information_button3_on = newImage("images/information_button3_on.gif");
		information_button4_on = newImage("images/information_button4_on.gif");
		preloadFlag3 = true;
	}
}