var xmlHttp;


function showContent(script, query, action)
{ 
	
	xmlHttp=GetXmlHttpObject();

	if (xmlHttp==null)
	{
	  alert ("Your browser does not support AJAX!");
	  return;
	} 
	
	
	var url = script;
	url = url + query;
	
	
	switch (action) {
		
		case "0":
			xmlHttp.onreadystatechange = stateNormal;
			break;
		
		case "1":
			xmlHttp.onreadystatechange = stateRotated;
			break;
	
	}
	
	
	
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
	
}

function stateNormal() 
{ 

	toggleBox('gallery_container_0', 1);
	toggleBox('gallery_container_1', 0);
	
	if (xmlHttp.readyState==1)
	{ 
		document.getElementById("gallery_container_0").innerHTML="";
	}
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		document.getElementById("gallery_container_0").innerHTML=xmlHttp.responseText;

	}
}

function stateRotated() 
{ 
	
	toggleBox('gallery_container_0', 0);
	toggleBox('gallery_container_1', 1);
	
	if (xmlHttp.readyState==1)
	{ 
		document.getElementById("gallery_container_1").innerHTML="";
	}
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		document.getElementById("gallery_container_1").innerHTML=xmlHttp.responseText;

	}
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	  {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	  }
	catch (e)
	  {
	  // Internet Explorer
	  try
	    {
	    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	    }
	  catch (e)
	    {
	    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	    }
	  }
	return xmlHttp;
}

function toggleBox(szDivID, iState) // 1 visible, 0 hidden
{
   var obj = document.layers ? document.layers[szDivID] :
   document.getElementById ?  document.getElementById(szDivID).style :
   document.all[szDivID].style;
   obj.visibility = document.layers ? (iState ? "show" : "hide") :
   (iState ? "visible" : "hidden");
}