var currentNewsNumber = 0;
var mouseIsOver = false;
     
function rollNews() {
  	if (!mouseIsOver) {
  		window.setTimeout("hideCurrentNews()",3000);
  		window.setTimeout("showNextNews()",3500);
  		window.setTimeout("rollNews()",4500);
  	} else {
  		window.setTimeout("rollNews()",500);
  	}
}
        
function showNextNews() {
  	if (!mouseIsOver) {
  		currentNewsNumber= (currentNewsNumber + 1)%4;
    	new Effect.Appear($('news'+(currentNewsNumber)), {duration: 1.0});
	} 
}
  
function hideCurrentNews() {
  	if (!mouseIsOver) {
    	new Effect.Fade($('news'+(currentNewsNumber)), {duration: 0.5});
  	}
}
  
function setMouseIsOver(isOver) {
  	mouseIsOver = isOver;	
}
  
function showIdeas() {
	new Effect.Appear($('ideas'), {duration: 1.5}); 
	new Effect.Fade($('ideasLink'), {duration: 0.25});
}

function showMore() {
    new Effect.Appear($('more'), {duration: 1.5}); 
    new Effect.Fade($('moreLink'), {duration: 0.25});
}

function popup_open(source, title, breite, hoehe) {
    var win;
    win=window.open(source, title, "width=" + breite + ",height="+hoehe+ ", resizable=yes, location=no, menubar=no, personalbar=no, status=no, toolbar=no, scrollbars=yes");
    win.focus();
}

function checkLanguageAndRedirect() {
    var languageinfo=navigator.language? navigator.language : navigator.userLanguage
    if (languageinfo.indexOf('de') > -1){
        window.location.href = 'de/index.html';
    }
}