function menu(){
	var menus=document.getElementsByTagName('ul');
	var i;
	for(i=0;i<menus.length;i++){
		if(menus[i].className=='menu'){
			var uls=menus[i].getElementsByTagName('ul');
			var j;
			for(j=0;j<uls.length;j++){
				uls[j].onmouseover=function(){this.className='over';};
				uls[j].onmouseout=function(){this.className='out';};
			}
			var polozky=menus[i].getElementsByTagName('li');
			var j;
			for(j=0;j<polozky.length;j++){
				polozky[j].onmouseover=function(){this.className='over';};
				polozky[j].onmouseout=function(){this.className='out';};
			}
		}
	}
}
menu();