var initialsubj="Her er en novelle";
var initialmsg="Hej:<br>Det er muligt at du er interesseret i denne side: <a href='"+window.location+"'>klik her</a>";
var good;

function checkEmailAddress(field) {
var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\.info)|(\.sex)|(\.biz)|(\.aero)|(\.coop)|(\.museum)|(\.name)|(\.pro)|(\..{2,2}))$)\b/gi);
if (goodEmail) {
good = true;
}
else {
alert('Indtast en gyldig emailadresse.');
field.focus();
field.select();
good = false;
   }
}
u = window.location;

function mailThisUrl() {
good = false
checkEmailAddress(document.eMailer.email);
if (good) {

window.location = "mailto:"+document.eMailer.email.value+"?subject="+initialsubj+"&body="+initialmsg
   }
}



document.write("<form name='eMailer'>");
document.write("Send til en ven:");
document.write("<input type='text' name='email' size='26' value='     Skriv adressen her'><input type='button' value='send denne side' onClick='mailThisUrl();'>");
document.write("</form>");