function go(l) {
  if (parseInt(navigator.appVersion)>=4)
    if (navigator.userAgent.indexOf("MSIE")>0) { //IE 4+
      var sel=document.selection.createRange();
      sel.expand("word");
      window.location="result.php?" + l + "=" + escape(sel.text)
    } else // NS4+
      window.location="result.php?" + l + "=" + escape(document.getSelection())
}