function setBackground(e){
	e.css({"background-image" : "url('css/menu-sprite.png')"});
}
function clearBackground(e){
	e.css({"background-image" : "none"});
}

function fadeInBeast(e){
    e.fadeIn(700);
}
function fadeOutBeast(e){
    e.fadeOut(350);
}

$(document).ready(function($){
	var tabOpts = {
	   fx: {
	     opacity: "toggle",
	     duration: "slow"
	   }
	};
	 //create the tabs
	 $("#myTabs").tabs(tabOpts);
			 
	$("a[rel^='prettyPhoto']").prettyPhoto({
		theme: 'light_rounded'/* light_rounded / dark_rounded / light_square / dark_square */
	});
//    $("#menu div.menu").css({"background-image" : "none"});
    $("#menu a#link-o-nas").mouseenter(function(){
	    setBackground($("#menu #o-nas"));
	    fadeInBeast($("#menu-beasts #img-o-nas"));
      }).mouseleave(function(){
	    clearBackground($("#menu #o-nas"));
	    fadeOutBeast($("#menu-beasts #img-o-nas"));
    });
    $("#menu a#link-zamestnanci").mouseenter(function(){
	    setBackground($("#menu #zamestnanci"));
	    fadeInBeast($("#menu-beasts #img-zamestnanci"));
      }).mouseleave(function(){
	    clearBackground($("#menu #zamestnanci"));
	    fadeOutBeast($("#menu-beasts #img-zamestnanci"));
    });
    $("#menu a#link-akce").mouseenter(function(){
	    setBackground($("#menu #akce"));
	    fadeInBeast($("#menu-beasts #img-akce"));
      }).mouseleave(function(){
	    clearBackground($("#menu #akce"));
	    fadeOutBeast($("#menu-beasts #img-akce"));
    });
    $("#menu a#link-plakaty").mouseenter(function(){
	    setBackground($("#menu #plakaty"));
	    fadeInBeast($("#menu-beasts #img-plakaty"));
      }).mouseleave(function(){
	    clearBackground($("#menu #plakaty"));
	    fadeOutBeast($("#menu-beasts #img-plakaty"));
    });
    $("#menu a#link-krouzky").mouseenter(function(){
	    setBackground($("#menu #krouzky"));
	    fadeInBeast($("#menu-beasts #img-krouzky"));
      }).mouseleave(function(){
	    clearBackground($("#menu #krouzky"));
	    fadeOutBeast($("#menu-beasts #img-krouzky"));
    });
    $("#menu a#link-fotogalerie").mouseenter(function(){
	    setBackground($("#menu #fotogalerie"));
	    fadeInBeast($("#menu-beasts #img-fotogalerie"));
      }).mouseleave(function(){
	    clearBackground($("#menu #fotogalerie"));
	    fadeOutBeast($("#menu-beasts #img-fotogalerie"));
    });
    $("#menu a#link-odkazy").mouseenter(function(){
	    setBackground($("#menu #odkazy"));
	    fadeInBeast($("#menu-beasts #img-odkazy"));
      }).mouseleave(function(){
	    clearBackground($("#menu #odkazy"));
	    fadeOutBeast($("#menu-beasts #img-odkazy"));
    });

});