function reverse(mytext) {
    var n = "";
    for (var i = mytext.length; i>0; i--) {
      n = n + (mytext.substring(i,i-1));
    }
    return n;
}

function mailme(reversenaam)
{
 email_array = reversenaam.split("|");
 user = reverse(email_array[0]);
 at = "@" ;
 if (email_array[1] == "usa") { 
    server = "servernaam.com"; 
 } else {
    server = "servernaam.nl";
 }
 eml = user+at+server ;

 if(navigator.userAgent.indexOf("Firefox") != -1) {
	browsertype = "Firefox";
 } else {
	browsertype = "other";
 }

 platformtype = ((navigator.platform.indexOf('Win') > -1) ? "win" : "mac");

 if ((browsertype == "Firefox") && (platformtype == "mac")) {
   alert('Opening E-mail program for e-mail address: '+eml);
   window.location = 'mailto:'+eml;
 } else {
   window.location.href = 'mailto:'+eml;
 }

}