var folder = "../images/pi_"

menuImages = new Array();
menuImages[0] = new Image;
menuImages[0].src = "../images/a.gif";
menuImages[1] = new Image;
menuImages[1].src = folder + "01.gif";
menuImages[2] = new Image;
menuImages[2].src = folder + "02.gif";
menuImages[3] = new Image;
menuImages[3].src = folder + "03.gif";
menuImages[4] = new Image;
menuImages[4].src = folder + "07.gif";
menuImages[5] = new Image;
menuImages[5].src = folder + "10.gif";
menuImages[6] = new Image;
menuImages[6].src = folder + "12.gif";
menuImages[7] = new Image;
menuImages[7].src = folder + "05.gif";
menuImages[8] = new Image;
menuImages[8].src = folder + "04.gif";
menuImages[9] = new Image;
menuImages[9].src = folder + "06.gif";
menuImages[10] = new Image;
menuImages[10].src = folder + "05.gif";
menuImages[11] = new Image;
menuImages[11].src = folder + "08.gif";
menuImages[12] = new Image;
menuImages[12].src = folder + "13.gif";
menuImages[13] = new Image;
menuImages[13].src = folder + "11.gif";
menuImages[14] = new Image;
menuImages[14].src = folder + "05.gif";
menuImages[15] = new Image;
menuImages[15].src = folder + "16.gif";
menuImages[16] = new Image;
menuImages[16].src = folder + "09.gif";
menuImages[17] = new Image;
menuImages[17].src = folder + "17.gif";

function on_image(loc, img)
{
	loc.src = menuImages[img].src;
}

function off_image(loc, img)
{
	loc.src = menuImages[img].src;
}