function email(name, domain, tld, text, subject){
     var link = "";
	 
	 if (subject == undefined){
	 	subject = "";
	 }
	 
	 if(link.length == 0){
       link = name + '@' + domain + '.' + tld;
     }

	if (text=="" || text==undefined){
		text = link;
	}

	renderEmailLink(name, domain,tld, text, subject);
     document.write(text + '</a>');
  }

  function renderEmailLink(name, domain, tld, text, subject){
     var display_this;
	 
	 if (subject=="") display_this = '<a href="mailto:' + name + '@' + domain + '.' + tld + '">';
	 else display_this = '<a href="mailto:' + name + '@' + domain + '.' + tld + '?subject=' + subject + '">'; 
	 	 
     document.write(display_this);
  }