function subscribe_to_corp_newsletter(email) {
		subscribe(email, 1);
	}
    function subscribe_to_newsletter(email) {
		subscribe(email, 0);
	}
	function subscribe(email, is_corp) {
         if ( ( email == "" ) || ( email.search("@") == -1 ) || ( email.search("[.*]" ) == -1 ) ) {
			  alert('You must enter a valid email. Please try again.');
			  return;
		 }
		 
		 

		var url = "svc/subscribe.php?action=subscribe&email=" + escape(email) + "&is_corp=" + is_corp;
        var httpRequest;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            httpRequest = new XMLHttpRequest();
            if (httpRequest.overrideMimeType) {
                httpRequest.overrideMimeType('text/xml');
                // See note below about this line
            }
        } 
        else if (window.ActiveXObject) { // IE
            try {
                httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } 
                catch (e) {
                           try {
                                httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                               } 
                             catch (e) {}
                          }
                                       }

        if (!httpRequest) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        httpRequest.onreadystatechange = function() { alertContents(httpRequest); };
        httpRequest.open('GET', url, true);
        httpRequest.send(null);


    }

    function alertContents(httpRequest) {

        if (httpRequest.readyState == 4) {
            if (httpRequest.status == 200) {
                alert(httpRequest.responseText);
				document.newsletter.email.value = "";
            } else {
                alert('There was a problem with the newsletter subscription request.');
            }
        }

    }