var php_newsletter_url = "ajax/newsletter.php";

function showForm() {
 		// erzeugt das Formular
	var element = '<input style="width:250px" id="email" maxlength="128" value="Deine E-Mailadresse" onfocus="if (this.value==\'Deine E-Mailadresse\') this.value=\'\'">';
	element += ' <a href="javascript:addEmail();" style="color:black;font-size:8pt">eintragen</a>';
 
	document.getElementById("newsletterForm").innerHTML += element;
 
}

function addEmail(){
	var email 		= document.getElementById('email').value;
	var ok = 1; 

	if ( !CheckEmail(email) ){
		document.getElementById("error").style.display = '';
		ok = 0;
	}else{
		document.getElementById("error").style.display = 'none';
	}
	if (ok){
		var post = "action=0&email=" + escape(email);
		addHttp = getHTTPObject();
		addHttp.open("POST", php_newsletter_url, true);
		addHttp.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
	   addHttp.setRequestHeader( 'Content-length', post.length );
		addHttp.onreadystatechange = function()
		{
			if (addHttp.readyState == 4)
			{
			
				newsletter_success();
				
			}	// End Readystate change
		};	
		addHttp.send(post);
	}
}

function newsletter_success(){
	var output = 'Deine Adresse wurde eingetragen.';
	document.getElementById('newsletter').innerHTML = output;
}

var httpShop = getHTTPObject(); // We create the HTTP Object