if (document.images)
{
	preload_image = new Image(); 
    preload_image.src = "../images/loader.gif"; 
}

function sendNewsletterRequest(url)
{
	var params = 'na=s&ne=' + document.getElementById("newsletter_email").value;
	xmlhttp = GetXmlHttpObject();
	xmlhttp.onreadystatechange = function() {if (xmlhttp.readyState==4)
											{												
												document.getElementById("newsletter_loading").style.display = 'none';
												if(xmlhttp.responseText.indexOf("newsletter_success") >= 0)
													document.getElementById("newsletter_success").style.display = 'inline';
												else
													document.getElementById("newsletter_form").style.display = 'inline';												
											}
										};
	xmlhttp.open("POST", url, true);
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");
	xmlhttp.send(params);
	document.getElementById("newsletter_form").style.display = 'none';
	document.getElementById("newsletter_loading").style.display = 'inline';
}

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject)
	{
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}