function opWin(msg)
{
var width="800", height="550";
var left = (screen.width/2) - width/2;
var top = (screen.height/4) - height/2;
var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
var msgWindow = window.open("","msgWindow", styleStr);
var head = 'Servicios Náuticos Pleamar';
var body = '
