function mravenci(){
    var menu=document.getElementById('menu');
    var a=menu.getElementsByTagName('a');
    for(var i=0;i<a.length;i++){
        a[i].onfocus=function(){
            if(this.focus)this.blur();
        }
    }
}
function addEvent(obj,evType,fn){
    if(obj.addEventListener){
        obj.addEventListener(evType,fn,true);
        return true;
    }
    else
        if(obj.attachEvent){
            var r=obj.attachEvent("on"+evType,fn);
            return r;
        }
        else{return false;}
}
addEvent(window,'load',mravenci);