function abrirBanner(identificador) { //v2.0
//alert('proot');
  LeftPosition = (screen.width) ? (screen.width-800)/2 : 0;
  TopPosition = (screen.height) ? (screen.height-450)/2 : 0;
  window.open('http://javea.com/counter.php?id=' + identificador,'','width=800,height=450,top='+TopPosition+',left='+LeftPosition+',resizable,scrollbars,directories,location,menubar,toolbar,status');
}

function abrir(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}