if (document.images) {
	var pic10 = new Image();  pic10.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic11 = new Image();  pic11.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic20 = new Image();  pic20.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic21 = new Image();  pic21.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic30 = new Image();  pic30.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic31 = new Image();  pic31.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic40 = new Image();  pic40.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic41 = new Image();  pic41.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic50 = new Image();  pic50.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic51 = new Image();  pic51.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic60 = new Image();  pic60.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic61 = new Image();  pic61.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
	var pic70 = new Image();  pic70.src = "http://www.spb-stec.ru/images/arrowb_nav.gif";
	var pic71 = new Image();  pic71.src = "http://www.spb-stec.ru/images/arrowr_nav.gif";
}

function actMenuItem(imgName) 
{
  if (document.images)  document[imgName].src = eval(imgName + "1.src");
}

function inactMenuItem(imgName) 
{
  if (document.images)  document[imgName].src = eval(imgName + "0.src");
}