/* ---------------------------- */
/* XMLHTTPRequest Enable */
/* ---------------------------- */
function createObject() {
var request_type;
var browser = navigator.appName;
if(browser == "Microsoft Internet Explorer"){
request_type = new ActiveXObject("Microsoft.XMLHTTP");
}else{
request_type = new XMLHttpRequest();
}
return request_type;
}

var http = createObject();


/* -------------------------- */
/* LOGIN */
/* -------------------------- */
/* Required: var nocache is a random number to add to request. This value solve an Internet Explorer cache issue */
var nocache = 0;


var old_maincategory = 'leer';

function mainmenue(content) {
	
	if(old_maincategory == 'leer'){
	document.getElementById(content).src = 'images/'+content+'_hover.gif';

	old_maincategory = content;

	}
	else if(content=='impressum'){
	
	}
	else{
	document.getElementById(old_maincategory).src = 'images/'+old_maincategory+'.gif';
	old_maincategory = content;

	}

// Optional: Show a waiting message in the layer with ID ajax_response


//document.getElementById('inhalt').innerHTML = "<center><img src=images/loader.gif></center>";

// Required: verify that all fileds is not empty. Use encodeURI() to solve some issues about character encoding.
// Set te random number to add to URL request
nocache = Math.random();
// Pass the login variables like URL variable
http.open('get', ''+content+'.php');

http.onreadystatechange = mainmenueReply;
http.send(null);



}
function mainmenueReply() {

if(http.readyState == 4){
var response = http.responseText;
if(response == 0){
// if login fails
document.getElementById('inhalt').innerHTML = 'Fehler1!'+response;
// else if login is ok show a message: "Welcome + the user name".
} else {


document.getElementById('inhalt').innerHTML = response;
Effect.Appear('inhalt');

}
}
}

function bildwechsel(content,status) {

if(status==2 ){
if(content==old_maincategory ){
	document.getElementById(content).src = 'images/'+content+'_hover.gif';

}
else{
	document.getElementById(content).src = 'images/'+content+'.gif';
}

}

else if (status==1){
	document.getElementById(content).src = 'images/'+content+'_hover.gif';

}


}