// Aqui van las funciones comunes a todas las paginas

window.name="principal";


var win= null;

function popup(url, name, w, h, scroll)
{
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  var settings  ='height='+h+',';
      settings +='width='+w+',';
      settings +='top='+wint+',';
      settings +='left='+winl+',';
      settings +='scrollbars='+scroll+',';
      settings +='resizable=yes';
  win=window.open(url,name,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}