if (document.images)
	{   
												
		sq1on = new Image(15, 18);
		sq1on.src = "img/on_square1.gif";
		sq1off = new Image(15, 18);
		sq1off.src = "img/off_square1.gif";
		
		sq2on = new Image(15, 18);
		sq2on.src = "img/on_square2.gif";
		sq2off = new Image(15, 18);
		sq2off.src = "img/off_square2.gif";
		
		sq3on = new Image(15, 18);
		sq3on.src = "img/on_square3.gif";
		sq3off = new Image(15, 18);
		sq3off.src = "img/off_square3.gif";
		
		sq4on = new Image(15, 18);
		sq4on.src = "img/on_square4.gif";
		sq4off = new Image(15, 18);
		sq4off.src = "img/off_square4.gif";
		
		sq5on = new Image(15, 18);
		sq5on.src = "img/on_square2.gif";
		sq5off = new Image(15, 18);
		sq5off.src = "img/off_square2.gif";
		
		sq6on = new Image(15, 18);
		sq6on.src = "img/on_square1.gif";
		sq6off = new Image(15, 18);
		sq6off.src = "img/off_square1.gif";
		
		sq7on = new Image(15, 18);
		sq7on.src = "img/on_square3.gif";
		sq7off = new Image(15, 18);
		sq7off.src = "img/off_square3.gif";
		
		sq8on = new Image(15, 18);
		sq8on.src = "img/on_square4.gif";
		sq8off = new Image(15, 18);
		sq8off.src = "img/off_square4.gif";

	}


function On( imgName ) 
	{
                if ( document.images ) 
                                {
                                imgOn = eval(imgName + "on.src");
                                document.images[imgName].src = imgOn;
                                }
                }

function Off( imgName ) 
                {
                if ( document.images ) 
                                {
                                imgOff = eval(imgName + "off.src");
                                document.images[imgName].src = imgOff;
                                }
                }