var xmlHttp;
function getAjax(funct,page,functData){
	try{
		xmlHttp=new XMLHttpRequest();
	}
	catch(e){
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e){
			try{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
			catch(e){
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange=function(){
		if(xmlHttp.readyState==4){
			var dataOut=xmlHttp.responseText;
			funct(dataOut,functData);
			centre(true);
		}
	}
	xmlHttp.open("GET",page,true);
	xmlHttp.send(null);
}
window.onunload=function(){
	//delete(xmlHttp.request);
}
function ajax(page){
	getAjax(ajaxOut,page,null);
}
function ajaxOut(dataOut,x){
	document.getElementById("contentsH").innerHTML=dataOut;
	document.getElementById("contents").innerHTML=dataOut;
}
function gallery(d,i,g){
	getAjax(galleryOut,"subjects/gallery.php?d="+d+"&i="+i+"&g="+g,d);
}
function galleryOut(dataOut,div){
	document.getElementById(div).innerHTML=dataOut;
}