function convertStringForPass(str) {
	str=str.replace(/#/g,"**:1:**");
	str=str.replace(/&/g,"**:2:**");
	
	return str;
}

function newsletter_signup() { 
	document.getElementById('top_newsletter_go').innerHTML="<img src='images/spinner_newsletter.gif'></img>";
	
	setTimeout('newsletter_signup_settimeout()',1250);
}
	
function newsletter_signup_settimeout() {
	http.open('get', 'ajax/poco.ajax.php?newsletter_signup=1&email='+encodeURI(convertStringForPass(document.getElementById('newsletter').value)));
	http.onreadystatechange = handle_newsletter_signup;
	http.send(null);
}

function handle_newsletter_signup() {
  if(http.readyState == 4) {
  	var response = http.responseText;
  	
  	if (response=="") {
  		document.getElementById('top_newsletter_go').innerHTML="go";
  		document.getElementById('newsletter').value="Thank You!";
  	} else {
  		document.getElementById('top_newsletter_go').innerHTML="go";
  	}
  }
}