function writeJS(){
var str='';
var showtext = "Sign up via email"
var mailpart1 = "fdsmarketing"
var mailpart2 = "fdsrx.com"
document.write("<a href=" + "mail" + "to:"
+ mailpart1 + "@" + mailpart2 + ">" + showtext + "</a>")
document.write(str);
}
writeJS();