swapImg = new Array();
cacheImage('mmenu1');
cacheImage('mmenu2');
cacheImage('mmenu3');
cacheImage('mmenu4');
cacheImage('mmenu5');
cacheImage('mmenu6');
cacheImage('mmenu7');

cacheImagetwo('bt_01');
cacheImagetwo('bt_02');
cacheImagetwo('bt_03');
cacheImagetwo('bt_04');
cacheImagetwo('bt_05');
cacheImagetwo('bt_06');
cacheImagetwo('bt_07');
cacheImagetwo('bt_08');
cacheImagetwo('bt_09');
cacheImagetwo('bt_10');
cacheImagetwo('bt_11');
cacheImagetwo('bt_12');



function cacheImage(imgName)
{
	swapImg[imgName + 'off'] = new Image();
	swapImg[imgName + 'off'].src = 'img/' + imgName + 'off.gif';
	swapImg[imgName + 'on'] = new Image();
	swapImg[imgName + 'on'].src = 'img/' + imgName + 'on.gif';
}

function cacheImagetwo(imgName)
{
	swapImg[imgName + 'off'] = new Image();
	swapImg[imgName + 'off'].src = 'img/' + imgName + 'off.gif';
	swapImg[imgName + 'on'] = new Image();
	swapImg[imgName + 'on'].src = 'img/' + imgName + 'on.gif';
}

function changeImage(imgID,imgNum)
{
	document.images[imgID].src = swapImg[imgNum].src;
}

function changeImage(imgID,imgNum)
{
	document.images[imgID].src = swapImg[imgNum].src;
}