var galleryMenu = '#header';



var menuAnimationTime = 500;

var menuTimeToStay = 500;



var mouseCheckInterval = 0;



$(function(){

	openGallery();

	$(galleryMenu).mouseover(function(){

		openGallery();

	});

});





function closeGallery () {

	if ($(galleryMenu).hasClass('active'))

		$(galleryMenu)

			.animate({

				'margin-top'	:	'-=99'

			}, menuAnimationTime)

			.removeClass('active');

}



function openGallery () {

	if (!$(galleryMenu).hasClass('active'))

		$(galleryMenu)

			.animate({

				'margin-top'	:	'+=99'

			}, menuAnimationTime)

			.addClass('active');



	setTimeout('checkMousePosition()' ,menuTimeToStay);

}



function startCheckingPostiion () {

	mouseCheckInterval = setInterval("checkMouseOverMenu()", 500);

}



function checkMousePosition () {

	$(document).mousemove(function(mouse){

		if (mouse.pageY > $(galleryMenu).height()){

			closeGallery();

			clearInterval(mouseCheckInterval);

		}

	})

}