// otevreni odkazu v novem okne
var winLink, winName, winProp;

function openWin(winLink,winName,winProp){
	var newWin = window.winName;
    if (newWin != null && !newWin.closed){
	  newWin.focus();
      newWin.location.href = winLink.href
    } 
    else { 
      newWin = window.open(winLink,winName,winProp);
      if (newWin==null || typeof(newWin)=="undefined"){
		return false;    
      }
      newWin.focus(); 
    }
};