var http_request = false;
   
   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } 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('Cannot create XMLHTTP instance');
         return false;
      }
      
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
			 result = http_request.responseText;
			 if (result=="error"){
				 alert("Oops, such email, or address is already in our database! \n\r ");
			 }
			 else
			 {
            //alert(http_request.responseText);
           
            document.getElementById('myspan').innerHTML = result;            
			 }
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function get(obj) {
	   
	   if (document.getElementById("name").value!="" && document.getElementById("name").value!="Name*" &&
		   document.getElementById("email").value!="" &&  document.getElementById("email").value!="Email*" && 
		   document.getElementById("address1").value!="" && document.getElementById("address1").value!="Address 1*" && 
		   document.getElementById("city").value!="" &&   document.getElementById("city").value!="City/Town*" &&
		   document.getElementById("postcode").value!="" && document.getElementById("postcode").value!="Postcode*"){
		   
      var poststr = "name=" + encodeURI( document.getElementById("name").value ) +
					"&email=" + encodeURI( document.getElementById("email").value )+
                    "&address1=" + encodeURI( document.getElementById("address1").value )+
                    "&address2=" + encodeURI( document.getElementById("address2").value )+
                    "&city=" + encodeURI( document.getElementById("city").value )+					
                    "&postcode=" + encodeURI( document.getElementById("postcode").value );
      makePOSTRequest('post.php', poststr);
	   }
	   else
	   {
		 alert("Please verify that Name, Email, Address, City and Poscode are entered correctly and are not empty");   
	   }
   }