function show(_this){
    document.getElementById('strazy').style.display = "block";
	document.getElementById('strazy').style.top = _this.offsetTop+420+"px";
	/*document.getElementById('strazy').style.left = document.getElementById('menu').offsetLeft+163;*/
	document.getElementById('strazy').style.left = document.getElementById('ere1').offsetLeft+158+"px";
  }
function hide(objekt){
document.getElementById(objekt).style.display="none";
}