var inProgress = false;
var boxVisible = false;

function toggleDiv(element, myDuration) {
	if (element && !inProgress) {
		inProgress = true;
		if (myDuration == undefined)
			myDuration = 0.5;
		if (element.style.display == 'none')  { 
		        //show
		        $("lang_status").src="fileadmin/lah/css/menu/img/lah_menu_arrow_down.gif";
			Effect.BlindDown(element.id, {duration: myDuration, afterFinish:function(){inProgress = false;}}); 
		}
		else { 
		        //hide
		        $("lang_status").src="fileadmin/lah/css/menu/img/lah_menu_arrow_up.gif";
			Effect.BlindUp(element.id, {duration: myDuration, afterFinish:function(){inProgress = false;}});
		}

	}
	return false;
}




function hideDiv(element, myDuration) {
	if (element && !inProgress) {
		inProgress = true;
		if (myDuration == undefined)
			myDuration = 0.5;
		$("lang_status").src="fileadmin/lah/css/menu/img/lah_menu_arrow_up.gif";
		Effect.BlindUp(element.id, {duration: myDuration, afterFinish:function(){inProgress = false;}});

	}
	return false;
}