// JavaScript Document

function ajax_switch(url,target) {
    if (document.getElementById(target).innerHTML != '') {
        document.getElementById(target).innerHTML = '';
    } else {
        ajax(url,target);
    }
}

function ajax(content,target) {

	var url = "page.php?act=" + content;
	
    // native XMLHttpRequest object
	document.getElementById(target).style.display = 'block';
    document.getElementById(target).innerHTML = '<p align="center"><br /><br /><br /><br /><img src="loading.gif" / ></p>';
    if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
        req.onreadystatechange = function() {ajaxDone(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() 
			{
				//ajaxDone(target);
					if (req.readyState == 4) {
				// only if "OK"		
						if (req.status == 200) {
							results = req.responseText;
							alert(result);
							document.getElementById(target).innerHTML = results;
						} else {
							document.getElementById(target).innerHTML="An Error Occurred:\n" +req.statusText;
						}
					}
			}
            req.open("GET", url, true);
            req.send(null);
        }
    }
}    

function ajaxDone(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="An Error Occurred:\n" +
                req.statusText;
        }
    }
}