// ajax.js
function createRequestObject() {
	var request_object;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer") {
		request_object = new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		request_object = new XMLHttpRequest();
	}
	return request_object;
}

var http = createRequestObject();
subject_id = '';

function do_action(div_id,url,title)
{
	if (title) {
		document.getElementById('titel').innerHTML = title;
	}
	subject_id = div_id;
//	alert(url);
	http.open('get', url);
	http.onreadystatechange = handleHttpResponse;
	http.send(null);
}

function handleHttpResponse() {

    if(http.readyState == 4) {
        var response = http.responseText;
//        alert(response);
        if (subject_id != '') {
            document.getElementById(subject_id).innerHTML = response;
        }
    }
}

function toggle_form (id) {
    if (document.getElementById(id).style.display == 'none') {
        document.getElementById(id).style.display = 'block';
    } else {
        document.getElementById(id).style.display = 'none';
    }
}

function menu_display(obj,status) {
	if (status == 'on') {
		obj.style.backgroundColor = '#717100';
		obj.style.color = 'white';
	} else {
		obj.style.backgroundColor = '#4F9D9D';
		obj.style.color = '#717100';
	}
}