img_on = new Image()
img_on.src = "images/mainmarker_on.gif";
img_off = new Image()
img_off.src = "images/mainmarker_off.gif";

im_n = new Image()
im_n.src = "images/marker_on.gif";
im_f = new Image()
im_f.src = "images/marker_off.gif";

function but1(img, act)
{
	if(act)
	{
		img.src = img_on.src;
	}
	else
	{
		img.src = img_off.src;
	}
}

function but(img, fun)
{
	if(fun)
	{
		img.src = im_n.src;
	}
	else
	{
		img.src = im_f.src;
	}
}