function _getPageSize()
{
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY)
	{	
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight) {
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else {
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	
	if (self.innerHeight)
	{
		if(document.documentElement.clientWidth)
		{
			windowWidth = document.documentElement.clientWidth; 
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { 
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) {
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	if(yScroll < windowHeight)
	{
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}
	
	if(xScroll < windowWidth)
	{	
		pageWidth = xScroll;		
	} else {
		pageWidth = windowWidth;
	}
	
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
	
	return arrayPageSize;
	
};

function _getPageScroll()
{
	
	var xScroll, yScroll;
	
	if (self.pageYOffset)
	{
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop) {
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;	
	}
	
	arrayPageScroll = new Array(xScroll,yScroll);
	
	return arrayPageScroll;
};

function callMe(url, callback, errorCallback)
{
	var oXMLHttpRequest = new XMLHttpRequest;
	oXMLHttpRequest.open("GET", url);
	oXMLHttpRequest.onreadystatechange = function()
	{
		if(oXMLHttpRequest.readyState == 4)
		{
			if(oXMLHttpRequest.status == 200)
			{				
				if(typeof(callback) === 'function')
				{
					callback(this.responseText);					
				}
			}			
			else if (oXMLHttpRequest.status == 401)
			{
				alert('401');
				document.location = "index.php";
				return;
			}
			else if (oXMLHttpRequest.status == 500)
			{
				alert('500');
				if (typeof(errorCallback) == 'function')
				{
					errorCallback(this.responseText);
				}
				else
				{
					alert('ERROR 500: ' + this.responseText);
				}
			}
		}
	}
	oXMLHttpRequest.send(null);
}

$(function()
{
	$(".scrollable").scrollable();
	$(".items img").click(function()
	{
		if ($(this).hasClass("active")) { return; }
		
		// zmiana linku w celu uzyskania dużego zdjęcia
		var url = $(this).attr("src").replace("_t", "");
		var urlBig = $(this).attr("src").replace("_t", "");
		var wrap = $("#image_wrap").fadeTo("medium", 0.5);
		var wrapBig = $("#image_wrap_big");
		var img = new Image();
		img.onload = function()
		{
			wrap.fadeTo("fast", 1);
			wrap.find("img").attr("src", url);
			wrapBig.find("img").attr("src", urlBig);
		};
		img.src = url;
		$(".items img").removeClass("active");
		$(this).addClass("active");
	}).filter(":first").click();
	$("#medPhoto").tooltip({ effect: 'slide'});
});