function showLarge(url)
{
	var sizeString = getImageDimensions(url);
	//alert(sizeString);
	window.open('/includes/js/popUpWindow.php?url=' + url,'',sizeString);
}

function getImageDimensions(url)
{
	// Get an xmlHttp object
	var xmlHttp = getTransport();
	
	if (xmlHttp == null)
	{
		return;
	}
		
	xmlHttp.open("POST", "/includes/ImageManipulation.php", false);
	
	xmlHttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded' );
	xmlHttp.setRequestHeader('Content-length', url.length );
	
	xmlHttp.send("imageUrl="+url);
		
	if (xmlHttp.responseText != "")
	{
		return xmlHttp.responseText;
	}
}

getTransport = function()
{
	var __transport = new Array( 
						 function(){ return XMLHttpRequest ? new XMLHttpRequest() : null }, 
						 function(){ return ActiveXObject  ? new ActiveXObject('Msxml2.XMLHTTP') : null }, 
						 function(){ return ActiveXObject  ? new ActiveXObject('Microsoft.XMLHTTP') : null } 
						);   

	for (var i = 0; i < __transport.length; i++)
	{
		try 
		{
			if (__transport[i]())
			{
				return __transport[i]; 
			}
		} 
		catch(e) 
		{
			//
		} 
	}

	return function()
	{ 
		return null;
	};
}();