var w = window; 
function showparts(url) {
  var path = ""
if ((w == window) || w.closed) {
  self.window.name="main"
  w = window.open('', 'parts', 'width=372,height=380,scrollbars=yes,resizable=yes');
} else {
w.focus();
}
  w.location.href = path + url;
}

/*
function showparts1(url) {
  var path = ""
  self.window.name="main"
  var win = window.open('', 'parts', 'width=372,height=380,scrollbars=yes,resizable=yes');
  win.location.href = path + url;
}
*/
//