function mainmenu(){
$(" #nav ul ").css({display: "none"}); // Opera Fix

var config = {    
     sensitivity: 3, // number = sensitivity threshold (must be 1 or higher)    
     interval: 200, // number = milliseconds for onMouseOver polling interval    
     over: function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		}, // function = onMouseOver callback (REQUIRED)    
     timeout: 700, // number = milliseconds delay before onMouseOut    
     out: function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		} // function = onMouseOut callback (REQUIRED)    
};


$("#nav li").hoverIntent(config);
}

function showAdd() {
  $('#pridatPrispevek').show();
  $('#pridatPrispevekD').hide();
}
 
 
 $(document).ready(function(){
  $('#pridatPrispevek').hide();
  $('#pridatPrispevekD').show().append($('<a>přidat příspěvek</a>').click(showAdd));
  $('#nav ul li:first-child').addClass('first');
  $('#nav ul li:last-child').addClass('last');
  
  					
	mainmenu();
});