var t;
var speed = 5;

function scroll_left()
{
	
	document.getElementById('firmyScrollMiddle').scrollLeft -= speed;
	t = setTimeout("scroll_left()", 10);
		
}
	
function scroll_right()
{
	
	document.getElementById('firmyScrollMiddle').scrollLeft += speed;
	t = setTimeout("scroll_right()", 10);
		
}
	
function scroll_clear()
{
	
	clearTimeout(t);
	
}

function preload_img()
{
	
	var i = 0;
	
	imageObj = new Image();
	
	obrazki = new Array();
	obrazki[0] = "img/menu_1a.jpg";
	obrazki[1] = "img/menu_2a.jpg";
	obrazki[2] = "img/menu_3a.jpg";
	obrazki[3] = "img/menu_4a.jpg";
	obrazki[4] = "img/menu_5a.jpg";
	obrazki[5] = "img/menu_6a.jpg";
	obrazki[6] = "img/tekst_archiwum_a.gif";
	
	for ( i = 0; i <= 6; i++ )
	{
		
		imageObj.src = obrazki[i];
		
	}
	
}