function jah_switch(url,target)
{

    if (document.getElementById(target).innerHTML != '')
    {
        document.getElementById(target).innerHTML = '';
    }
    else
    {

        jah(url,target);
    }

}

function jah(url,target,message) {
    // native XMLHttpRequest object
	param = '&server_name=' + document.getElementById('server_name').value;
	param += '&server_ip=' + document.getElementById('server_ip').value;			
	param += '&server_port=' + document.getElementById('server_port').value;
	param += '&type=' + document.getElementById('type').value;
	param += '&username=' + document.getElementById('username').value;
	param += '&tag=' + document.getElementById('tag').value;
	param += '&message=' + message;

    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = function() {jahDone(target);};
        req.open("POST", url, true);
		req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        req.send(param);
    // IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = function() {jahDone(target);};
            req.open("POST", url, true);
			req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
            req.send(param);
        }
    }
}    

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;
        }
    }
}