function checkEmail(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("NewsLetter Email : \n Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("NewsLetter Email : \n Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("NewsLetter Email : \n Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("NewsLetter Email : \n Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("NewsLetter Email : \n Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("NewsLetter Email : \n Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("NewsLetter Email : \n Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}
	
	
	
	function subscribe(email, add) {

		//..Debug
		//alert('Subscribe : '+email);
		
		//..Validate the Email Address
		if(!checkEmail(email)){
	
			//..Debug
			//alert('Subscribe : Email InValid');
			//document.getElementById("subscribeEmailInput").focus();
			return;
		}	
		
		//..Debug
		//alert('Subscribe : Email Valid');

		//..Use a random number to cache bust	
		var url="http://www.makelogic.com/scripts/newsletter/NewsLetterSubscribe.php?emailAddress="+email+"&add="+add+"&rand="+parseInt(Math.random()*99999999);
		
        var http_request = false;

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

        if (!http_request) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        http_request.onreadystatechange = function() { showSubscribeDivision(http_request); };
        
        http_request.open('GET', url, true);
        http_request.send(null);
        
        var response = '';
         if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                //alert(http_request.responseText);
                response = http_request.responseText;
            } else {
                //alert('There was a problem with the request.');
                response = 'There was a problem with the request.';
            }

        return response;
        }
    }

    function showSubscribeDivision(http_request) {

        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
            
                mdiv = document.getElementById("subscribeDiv");
				mdiv.innerHTML = http_request.responseText;
                
            } else {
                alert('There was a problem with the request.');
                
            }
        }

    }