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) {

		b1_over = newImage("/lv/images/b1_over.gif");
		b2_over = newImage("/lv/images/b2_over.gif");
		b3_over = newImage("/lv/images/b3_over.gif");
		b4_over = newImage("/lv/images/b4_over.gif");
		b5_over = newImage("/lv/images/b5_over.gif");
		b6_over = newImage("/lv/images/b6_over.gif");
		b7_over = newImage("/lv/images/b7_over.gif");
		b8_over = newImage("/lv/images/b8_over.gif");
		m1_over = newImage("/lv/images/band_2_over.jpg");
		m2_over = newImage("/lv/images/band_3_over.jpg");
		m3_over = newImage("/lv/images/band_5_over.jpg");
		m4_over = newImage("/lv/images/band_6_over.jpg");
		m5_1 = newImage("/lv/images/band_4_1.jpg");
		m5_2 = newImage("/lv/images/band_4_2.jpg");
		m_1_over = newImage("/lv/images/m_1_over.jpg");
		m_2_over = newImage("/lv/images/m_2_over.jpg");
		s1_over = newImage("/lv/images/switch_over.gif");
		s2_over = newImage("/images/s2_over.gif");
		s3_over = newImage("/images/s3_over.gif");

		preloadFlag = true;
	}
}

function showDiv(num)
{
	for (var i = 0; i <= 50; i++)
	{
		if (i != num){
			document.getElementById(i).style.display = "none";
			document.getElementById(100*i).style.display = "none";
			}
		else {
			document.getElementById(i).style.display = "block";
			document.getElementById(100*i).style.display = "block";
			}			
	}
}

function showDiv2(num)
{
	for (var i = 0; i <= 35; i++)
	{
		if (i != num)
			document.getElementById(i).style.display = "none";
		else
			document.getElementById(i).style.display = "block";			
		
		if (i != num)
			document.getElementById(129+i).style.display = "none";
		else
			document.getElementById(129+i).style.display = "block";
	}
}

function showDiv3(num)
{
	for (var i = 0; i <= 7; i++)
	{
		if (i != num)
			document.getElementById(i).style.display = "none";
		else
			document.getElementById(i).style.display = "block";			
		
		if (i != num)
			document.getElementById(20+i).style.display = "none";
		else
			document.getElementById(20+i).style.display = "block";
	}
}