function jah(url,target,img) {
    // native XMLHttpRequest object
	if(document.getElementById(target).innerHTML=="")
	{
		
		document.getElementById(target).innerHTML = '<center><img align="middle" src="images/searching.gif" height="13" width="13"><br>loading...';
		if (window.XMLHttpRequest) {
			req = new XMLHttpRequest();
			req.onreadystatechange = function() {jahDone(target);};
			req.open("GET", url, true);
			req.send(null);
		// IE/Windows ActiveX version
		} else if (window.ActiveXObject) {
			req = new ActiveXObject("Microsoft.XMLHTTP");
			if (req) {
				req.onreadystatechange = function() {jahDone(target);};
				req.open("GET", url, true);
				req.send();
			}
		}
		var id_img = document.getElementById(img);
		id_img.src = "images/hide.jpg";
	}
	else
	{
		document.getElementById(target).innerHTML = '';
		var id_img = document.getElementById(img);
		id_img.src = "images/show.jpg";
	}
}    

function jahDone(target) {
    // only if req is "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            results = req.responseText;
            document.getElementById(target).innerHTML = results;
        } else {
            document.getElementById(target).innerHTML="jah error:\n" +
                req.statusText;
        }
    }
}