var lastobject="";

// funktionen, um die menus aus- und einzuklappen
function visible(object,state){
	var status
	if (state)
		status = "visible";
	else
		status = "hidden";
		

	if (document.layers)
			document.layers[object].visibility = status;
		else if (document.all)
			document.all[object].style.visibility = status;
		else if (document.getElementById)
			document.getElementById(object).style.visibility = status;
}

function ShowMenu(objName){
    if (lastobject == objName){
	HideMenu(lastobject)
	lastobject = "";
	} 
	else
	{
	   if (lastobject != ""){
	   HideMenu(lastobject)
	    }
	   visible(objName,true);
	   lastobject = objName;
	}
}

function HideMenu(objName){
   	visible(objName,false);
}

// funktion, um browserfenster in standardgrösse zu öffen

function winOpen(URL){
    window.open('../bilddetail.htm?' + URL,'fenster','width=650 height=500 scrollbars=no')
}