function zmazat() {
  var zmaz=confirm("Chcete naozaj vymazať túto položku?");
  return zmaz;
}

function move_menu() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }

  var menu_obj = document.getElementById('menu');
  menu_obj.style.marginLeft = scrOfX + 400 + 'px';

  timer2 = setTimeout("move_menu()", 50); 
}


function getScrollXY() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
  return [ scrOfX, scrOfY ];
}
function findPos(obj)
{
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}
function showObj(item) {
  var obj = document.getElementById(item);
  
  if (obj.style.display == 'block') obj.style.display = 'none';
  else obj.style.display = 'block';
  
  var coord = getScrollXY();
  var x = document.documentElement.clientWidth/2 - obj.clientWidth/2;
  var y = document.documentElement.clientHeight/2 - obj.clientHeight/2;
  
  obj.style.left = coord[0] + x + 'px';  
  obj.style.top = coord[1] + y + 'px';  

}
function scrollDiv(item, direc) {
  itemL = item;
  direcL = direc;
  var obj = document.getElementById(itemL);
  switch (direc) {
    case 'up': obj.scrollTop -= 10; break; 
    default: obj.scrollTop += 10; break;
  }
  
  timer1 = setTimeout("scrollDiv(itemL, direcL)", 50); 
}

var newwindow = '';

function openWindow(item) {
  var url = item.href;
  var myWidth, myHeight, myLeft, myTop;
  myWidth = 640; 
  myHeight = 480;
  myLeft = 20;
  myTop = 20;

  if (!newwindow.closed && newwindow.location) {
  	newwindow.location.href = url;
  } else {
    newwindow = window.open(url,'details','left='+myLeft+',top='+myTop+',width='+myWidth+',height='+myHeight+',resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no');
  	if (!newwindow.opener) newwindow.opener = self;
  }
  if (window.focus) {newwindow.focus()}
  return false;
}

function show_note(item, disp) {
  var obj = document.getElementById(item);
  if (obj.innerHTML != "") {
    objHeightMulti = ((obj.offsetHeight - 10) / 12) - 1;
    objHeight = 375 - (12 * objHeightMulti);
    obj.style.marginTop = objHeight + "px";
    if (disp == 1) {
      obj.style.visibility = "visible";
    } else {
      obj.style.visibility = "hidden";
    }
  }
}