function setnav(nr){
 
 document.getElementById("av"+String(nr)).style.backgroundImage="url(http://www.neologstore.com/img/nx.gif)";

 return true;
}



var F1;
function pop(_nam,_newy){
	var _name= _nam+'.shtml';
	var _x=screen.width-500;
	var _yy=(screen.height*0.8);
	var _y=(_newy)?_newy:_yy;
	_sc =(_newy)?'no':'yes';
	if (_newy && _yy<_newy) {
		_y = _yy;
		_sc = 'yes';
	}
	F1 = window.open(_name,"Popup","width=800,height="+_y+",left="+_x+",top=20,location=no,menubar=no,resizable=no,scrollbars=yes,status=no,toolbar=no");
}