function check_form()	{
	if (document.getElementById('sign_firstname').value.length > 0)	{
		if (document.getElementById('sign_lastname').value.length > 0)	{
			if (document.getElementById('sign_email').value.length > 0)	{
				if (document.getElementById('sign_kommentar').value.length > 0)	absenden_ok()
				else	absenden_nicht_ok()
			}
			else	absenden_nicht_ok()
		}
		else	absenden_nicht_ok()
	}
	else	absenden_nicht_ok()
}


function check_form2()	{
	if (document.getElementById('contest_firstname').value.length > 0)	{
		if (document.getElementById('contest_lastname').value.length > 0)	{
			if (document.getElementById('contest_email').value.length > 0)	{
				if (document.getElementById('contest_userrights').checked > 0)	absenden_ok()
				else	absenden_nicht_ok()
			}
			else	absenden_nicht_ok()
		}
		else	absenden_nicht_ok()
	}
	else	absenden_nicht_ok()
}


function absenden_ok()	{
	document.getElementById("abgeschickt").disabled = false;
	document.getElementById("abgeschickt").style.cursor = "pointer";
}

function absenden_nicht_ok()	{
	document.getElementById("abgeschickt").style.cursor = "default";
	document.getElementById("abgeschickt").disabled = true;
}

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

var http = createRequestObject();

function load_home() {
		menu_change(0);
    http.open('get', 'home.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}



function load_contact() {
		menu_change(5);
    http.open('get', 'contact.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function load_confirm_support(strwert)	{
    http.open("GET", "support.confirm.php?confirm="+strwert);
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function load_support_us() {
		menu_change(1);
    http.open('get', 'support.us.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function load_contest(strwert) {
	menu_change(2);

	if(typeof strwert=='undefined')	{
		http.open('get', 'contest.start.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
  }
  else if (strwert == 1)	{
		window.open('contest.participate.php', "Aktionsgemeinschaft Petersweg - Mein schönstes Staufoto", "width=350,height=500,left=200,top=200");
		//MeinFenster.focus();
  }
    else if (strwert == 2 )	{
		http.open('get', 'contest.preview.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
  }
}






function load_comment() {
    http.open('get', 'gbcomment.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function load_supporters() {
		menu_change(3);

    http.open('get', 'supporters.index.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function load_press() {
		menu_change(4);

    http.open('get', 'press.index.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}


function save_sign_entry(sign_firstname, sign_lastname, sign_email, sign_kommentar, sign_street, sign_city)	{

	sign_firstname = sign_firstname.replace(/\n/g, "<br>");
	sign_firstname = sign_firstname.replace(/&/g,'ichbineinkaufmannsund');
	sign_lastname = sign_lastname.replace(/\n/g, "<br>");
	sign_lastname = sign_lastname.replace(/&/g,'ichbineinkaufmannsund');
	sign_street = sign_street.replace(/\n/g, "<br>");
	sign_street = sign_street.replace(/&/g,'ichbineinkaufmannsund');
	sign_city = sign_city.replace(/\n/g, "<br>");
	sign_city = sign_city.replace(/&/g,'ichbineinkaufmannsund');
	sign_kommentar = sign_kommentar.replace(/\n/g, "<br>");
	sign_kommentar = sign_kommentar.replace(/&/g,'ichbineinkaufmannsund');

	if (window.XMLHttpRequest) {
		http = new XMLHttpRequest();
   } else if (window.ActiveXObject) {
		http = new ActiveXObject("Microsoft.XMLHTTP");
   }
   if (http != null) {
		http.open("GET", "support.us.save.entry.php?firstname="+sign_firstname+"&lastname="+sign_lastname+"&sign_email="+sign_email+"&sign_kommentar="+sign_kommentar+"&sign_street="+sign_street+"&sign_city="+sign_city, true)
		http.onreadystatechange = handleResponse;
		http.send(null);
   }
}


function load_imprint() {
		menu_change(6);

    http.open('get', 'imprint.php');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

    
    

function sndReq(action) {
    http.open('get', 'output.php?action='+action);
    http.onreadystatechange = handleResponse;
    http.send(null);
}



function handleResponse() {
   if (http.readyState == 4) {
		var answer = http.responseText;
		if(document.getElementById("content").innerHTML != answer){
			document.getElementById("content").innerHTML = answer;
		}
		else{
			document.getElementById("content").innerHTML = "";
		}
	}
}

 
 function FensterOeffnen (Adresse) {
  MeinFenster = window.open(Adresse, "Zweitfenster", "width=350,height=500,left=200,top=200,resizable=no");
  MeinFenster.focus();
}

function menu_change(strwrt)	{
	for (var i = 0; i <= 6; i++)	{
		if (i != 4) document.getElementById("menu_"+i).style.backgroundImage = "url(images/menu_"+i+".jpg)";
	}
	
	document.getElementById("menu_"+strwrt).style.backgroundImage = "url(images/menu_"+strwrt+"_v.jpg)";

}