var xmlHttp=null;

function ImageGallery(viewType, CurrentImage, GalleryID)
	{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
		{
		alert ("Browser does not support HTTP Request");
		return;
		} 
	var url="/gallery/ajax.asp";
	url=url+"?galmode="+viewType; //Gallery Display Mode
	url=url+"&CurrentImage="+CurrentImage; //Current Image
	url=url+"&gtID="+GalleryID; //Gallery ID
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET", url, true);
	xmlHttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
	xmlHttp.send(null);
}

function stateChanged() 
{ 
	var ContentDisplay = document.getElementById("ShowGallery");
	var ContentPreloader = document.getElementById("ContentPreloader");
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		ContentPreloader.innerHTML = "";
		ContentDisplay.innerHTML=xmlHttp.responseText;
		
	} else if (xmlHttp.readyState==2 || xmlHttp.readyState==3) {
		ContentPreloader.innerHTML = "<img width=\"35\" height=\"35\" src=\"http://www.seafevervilla.com/gallery/vimages/loader.gif\" alt=\"\" />";
	}
} 

function GetXmlHttpObject()
{ 
	var objXMLHttp=null;
	try { 
		objXMLHttp=new XMLHttpRequest(); //Standard way, other browsers, IE7
		}
		catch(e) {
			if (objXMLHttp==null) { 
				objXMLHttp=new ActiveXObject("Msxml2.XMLHTTP"); //IE6
			 }
		}
	return objXMLHttp;
}