obr1=new Image(); obr1.src="images/arrow.gif";
obr2=new Image(); obr1.src="images/czflag.gif";
obr3=new Image(); obr1.src="images/enflag.gif";
obr4=new Image(); obr1.src="images/menu/ftv2blank.gif";
obr5=new Image(); obr2.src="images/menu/ftv2lastnode.gif";
obr6=new Image(); obr3.src="images/menu/ftv2mlastnode.gif";
obr7=new Image(); obr4.src="images/menu/ftv2mnode.gif";
obr8=new Image(); obr5.src="images/menu/ftv2node.gif";
obr9=new Image(); obr6.src="images/menu/ftv2plastnode.gif";
obr10=new Image(); obr7.src="images/menu/ftv2pnode.gif";
obr11=new Image(); obr8.src="images/menu/ftv2vertline.gif";

obr13=new Image(); obr1.src="images/loading_cs.gif";
obr14=new Image(); obr1.src="images/loading_en.gif";

obr15=new Image(); obr1.src="images/plus.gif";
obr16=new Image(); obr2.src="images/minus.gif";
obr17=new Image(); obr3.src="images/view.gif";
obr18=new Image(); obr4.src="images/category_go.gif";
obr19=new Image(); obr5.src="images/menu_up.gif";
obr20=new Image(); obr6.src="images/menu_down.gif";

function show_login() {
	obj=document.getElementById('loginwindow');
	if(obj.style.display=='none') {
		obj.style.display='block';
		document.Login.username.focus();
	}
	else if(obj.style.display=='block') {
		obj.style.display='none';
	}
}

function show_info() {
	obj=document.getElementById('infowindow');
	if(obj.style.display=='none') {
		obj.style.display='block';
	}
	else if(obj.style.display=='block') {
		obj.style.display='none';
	}
}