var bmark02a=new Image();
var bmark02p=new Image();
var bmark03a=new Image();
var bmark03p=new Image();

function NavPicMark() {
  bmark02a.src="../graphics/bmark02a.jpg";
  bmark02p.src="../graphics/bmark02p.jpg";
  bmark03a.src="../graphics/bmark03a.jpg";
  bmark03p.src="../graphics/bmark03p.jpg";
}


function blPicMark(item,action) {
  if (action) {
    document.images["bmark"+item].src="../graphics/bmark"+item+"a.jpg";
  }
  else {
    document.images["bmark"+item].src="../graphics/bmark"+item+"p.jpg";
  }
	return true;
}