var xmlHttpImage;

function selectImage(img) {
	var url="galOnClick.php?sid=" + Math.random() + "&imgID=" + img;
	xmlHttpImage=GetXmlHttpObject(ImageStateChanged);
	xmlHttpImage.open("GET", url , true);
	xmlHttpImage.send("");
};

function ImageStateChanged() {
	if (xmlHttpImage.readyState==4 || xmlHttpImage.readyState=="complete") {
		document.getElementById("imageStuff").innerHTML=xmlHttpImage.responseText;
	}
}

function GetXmlHttpObject(handler) {
	var objXmlHttp=null;
	if (navigator.userAgent.indexOf("Opera")>=0) {
		alert("This example doesn't work in Opera");
		return;
	}
	if (navigator.userAgent.indexOf("MSIE")>=0) {
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) {
			strName="Microsoft.XMLHTTP";
		}
		try {
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler;
			return objXmlHttp;
		} catch(e) {
			alert("Error. Scripting for ActiveX might be disabled");
			return;
		}
	}
	if (navigator.userAgent.indexOf("Mozilla")>=0) {
		objXmlHttp=new XMLHttpRequest();
		objXmlHttp.onload=handler;
		objXmlHttp.onerror=handler;
		return objXmlHttp;
	}
}