if (document.images)
{ 
	img1on = new Image ;
	img1off = new Image ; 
	img2on = new Image ;
	img2off = new Image; 
	img3on = new Image ;
	img3off = new Image; 
	img4on = new Image ;
	img4off = new Image; 
	urlImg = "http://www.arto.su/";
//	urlImg = "http://arto/";
	img1on.src = urlImg+"images/banner1_activ.gif";
	img1off.src = urlImg+"images/banner1.gif";
	img2on.src = urlImg+"images/banner2_activ.gif";
	img2off.src = urlImg+"images/banner2.gif";
	img3on.src = urlImg+"images/banner3_activ.gif";
	img3off.src = urlImg+"images/banner3.gif";
	img4on.src = urlImg+"images/banner4_activ.gif";
	img4off.src = urlImg+"images/banner4.gif";
}

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

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