navi_allowhide = true;

function navi_popdown(parentname){
	var parentmenu = document.getElementById(parentname);
	var childmenu = document.getElementById(parentname + '_popdown');
	if(!childmenu) return;

	var realtop = realleft = 0;
	var obj = parentmenu;
	if(obj.offsetParent){
		do{
			realleft += obj.offsetLeft;
			realtop += obj.offsetTop;
		}while(obj = obj.offsetParent);
	}

	childmenu.style.top = realtop + 1*parentmenu.offsetHeight;
	childmenu.style.left = realleft + parentmenu.offsetWidth / 2 - childmenu.offsetWidth / 2;
	childmenu.style.visibility = 'visible';
	
	create_newsticker(1);
}

function navi_hove(object){
	var obj = document.getElementById(object).style;
	obj.color='#f3ca5c'; 
	obj.backgroundImage='url(Bilder/button_hover-navi.jpg)';
	navi_popdown(object);
}

function navi_timeout(object){
	window.setTimeout("navi_popdown_hide('" + object + "')", 20);
}

function navi_dehove(object){
	var obj = document.getElementById(object).style;
	obj.color = '#ffffff'; 
	obj.backgroundImage='url(Bilder/button-navi.jpg)';
	navi_allowhide = true;
	navi_timeout(object + "_popdown");
}

function navi_popdown_hide(obj){
	if(navi_allowhide == true){
		document.getElementById(obj).style.visibility = "hidden";
		create_newsticker(2);
	}
}

function navi_active(obj){
	var navi = document.getElementById(obj + "_popdown");
	if(navi.style.visibility == 'hidden') navi_popdown(obj);
}

function navi_popdown_hove(object){
	var obj = document.getElementById(object).style;
	obj.color = "#ffffff";
	obj.backgroundImage = 'url(Bilder/menudropdown-bg2-hover.jpg)';
	navi_allowhide = false;
}

function navi_popdown_dehove(parent, object){
	var obj = document.getElementById(object).style;
	obj.color = "#000000";
	obj.backgroundImage = 'url(Bilder/menudropdown-bg.jpg)';
	navi_allowhide = true; 
	navi_timeout(parent);
}