browserName = navigator.appName; 
browserVer = parseInt(navigator.appVersion); 
browser = "notOk"; 

if ((navigator.userAgent.substring(0,9) == "Mozilla/3") || (navigator.userAgent.substring(0,9) == "Mozilla/4") || (navigator.userAgent.substring(0,9) == "Mozilla/5") || (navigator.userAgent.substring(0,9) == "Mozilla/6") || (navigator.userAgent.substring(0,5) == "Opera")) { browser = "ok"; }

if (browser == "ok") { 
 c1 = new Image; c1.src = "gfx/intf/m_c1.gif";
 c1on = new Image; c1on.src = "gfx/intf/m_c1on.gif";
 c2 = new Image; c2.src = "gfx/intf/m_c2.gif";
 c2on = new Image; c2on.src = "gfx/intf/m_c2on.gif";
 c3 = new Image; c3.src = "gfx/intf/m_c3.gif";
 c3on = new Image; c3on.src = "gfx/intf/m_c3on.gif";
 c4 = new Image; c4.src = "gfx/intf/m_c4.gif";
 c4on = new Image; c4on.src = "gfx/intf/m_c4on.gif";
 c5 = new Image; c5.src = "gfx/intf/m_c5.gif";
 c5on = new Image; c5on.src = "gfx/intf/m_c5on.gif";
 c6 = new Image; c6.src = "gfx/intf/m_c6.gif";
 c6on = new Image; c6on.src = "gfx/intf/m_c6on.gif";
}

function show(name,newpic) {
 if (browser == "ok") { document.images[name].src = eval(newpic); }
}