function schowaj(){ this.className='';}
function pokaz(){  this.className = 'hover'; this.onmouseout = schowaj; }
function fixIE() {
if(window.ActiveXObject) var x = document.getElementById('menu');
if (!x) return;
var y = x.getElementsByTagName('li');
for (var i=0;i<y.length;i++)
 y[i].onmouseover = pokaz;
}

window.onload = function() { fixIE();  }