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

function cambiamail (buzon) {
var res = "";
for (var n = 0; n < buzon.length; n++)
res += String.fromCharCode(buzon.charCodeAt(n));
if (res.indexOf('@') < 0)
res = res + '@' + 'queridamilagros.com';
location = "mail" + "to:" + res;
}