// Calculates the object's absolute position, and width and height
	function GetAbsPosition(object) {
		var position = new Object;
		position.x = 0;
		position.y = 0;

		if( object ) {
		position.x = object.offsetLeft;
		position.y = object.offsetTop;

		if( object.offsetParent ) {
		var parentpos = GetAbsPosition(object.offsetParent);
		position.x += parentpos.x;
		position.y += parentpos.y;
		}
		}

		position.cx = object.offsetWidth;
		position.cy = object.offsetHeight;

		return position;
	}

	function displaySubMenu (submenu,parentmenu,topbottom) {
		var submenuHeight = 100;
		var submenuHeight = $(submenu).outerHeight();
		position = GetAbsPosition(parentmenu);

		$(".submenu").css('left',-1000)
			     .css('top',-1000);
			     
			if (topbottom == 'bottom'){
				$(submenu).css('left',position.x - 4)
					  .css('top',position.y - submenuHeight)
					  .fadeOut(0).fadeIn(700);
			}else{
				$(submenu).css('left',position.x - 4)
					  .css('top',position.y + position.cy)
					  .fadeOut(0).fadeIn(700);
			}
	}
	
	function testAjax() {
		$.post(base_url+'ajax/cnavigation', { nazwa: "John", czas: "2pm" },
			function(data){
				alert(data.nazwa); // John
				console.log(data.czas); //  2pm
			}, "json");
	}