function zm_y(name){
if (document.images)
  document.images[name].src = eval(name + '.src');
}

function zm_n(name){
if (document.images)
  document.images[name].src = eval(name + '_rl.src');
}

if (document.images)
{
m_1= new Image(); m_1.src = "images/mnu1.gif";
m_1_rl = new Image(); m_1_rl.src = "images/mnu1_rl.gif";

m_2= new Image(); m_2.src = "images/mnu2.gif";
m_2_rl = new Image(); m_2_rl.src = "images/mnu2_rl.gif";

m_3= new Image(); m_3.src = "images/mnu3.gif";
m_3_rl = new Image(); m_3_rl.src = "images/mnu3_rl.gif";

m_4= new Image(); m_4.src = "images/mnu4.gif";
m_4_rl = new Image(); m_4_rl.src = "images/mnu4_rl.gif";

m_5= new Image(); m_5.src = "images/mnu5.gif";
m_5_rl = new Image(); m_5_rl.src = "images/mnu5_rl.gif";

m_6= new Image(); m_6.src = "images/mnu6.gif";
m_6_rl = new Image(); m_6_rl.src = "images/mnu6_rl.gif";

m_7= new Image(); m_7.src = "images/mnu7.gif";
m_7_rl = new Image(); m_7_rl.src = "images/mnu7_rl.gif";
}