function showwin(url,w,h)
{
	var myleft = Math.round ((screen.width - w) / 2);
	var mytop =  Math.round ((screen.height - h) / 2) - 30;
  	window.open(url,"_blank","toolbar=no,location=no,directoties=no,status=no,menubar=no,scrollbars=no,resizable=no,width="+w+",height="+h+",top="+mytop+",left="+myleft);
}

function write_mt(x,y,z){ document.write("<a href='mailto:", y, "@", x, "'>", z, "</a>"); }

function write_ml(x,y){ document.write("<a href='mailto:", y, "@", x, "'>", y, "@", x, "</a>"); }



  function topSetBg(cell) {
    cell.style.backgroundImage="url('../i/nav/top_a.gif')";
  }

  function topClearBg(cell) {
    cell.style.backgroundImage="url('../i/nav/top_p.gif')";
  }