var exwin=null;
function News(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2-410;
    var myTop = (screen.height-myHeight)/2-150;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop;
  }
  if(exwin!=null)exwin.close();
  window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}