function MM_openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}
function pop_up(theURL,pwidth,pheight,features) {
  var screenW = (screen.width / 2) - (pwidth / 2);
  var screenH = (screen.height / 2) - (pheight / 2);
  newWindow = open(theURL, "newWin","width="+pwidth+",height="+pheight+",top=" + screenH + ",left=" + screenW +","+ features);
}