function leftrightsink(){
	var halfleft = getElementsByClass('_miertmileft');
	var halfright = getElementsByClass('_miertmiright');
	for(a in halfleft) {
		var lilinks = halfleft[a].getElementsByTagName('li');
		for(var i=0; i < lilinks.length; i++){
			lilinks[i].onmouseover = function(){
				var _li = this.parentNode.parentNode.getElementsByTagName('li');
				var _h3 = this.parentNode.parentNode.parentNode.getElementsByTagName('h3');
				for(var j=0; j <_li.length; j++) {
					if( _li[j] != this) {
						_li[j].className="";
						if(_h3[j])_h3[j].style.display = "none";
					}else{
						_li[j].className="active";
						if(_h3[j])_h3[j].style.display = "block";
					}
				}
				return false;
			}
		}
	}
}

addEvent(window, 'load', leftrightsink);