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) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            
            if (result == 'oops'){
            	// oops
            	document.getElementById('errorspan').innerHTML = "You have not entered the requried information"; 
            }else if (result == 'thanks'){
            	// thanks
            	hide('callbackopen');
            	show('callbackthanks');
            }
            
            //document.getElementById('myspan').innerHTML = result;            
         } else {
            alert('There was a problem with the request.' + http_request.status);
            
         }
      }
   }
   
   function sendajax(obj) {
      //var poststr = "mytextarea1=" + encodeURI( document.getElementById("mytextarea1").value ) +
      //              "&mytextarea2=" + encodeURI( document.getElementById("mytextarea2").value );
      //alert('here');
      // check required
      var error = 0;
      if (document.getElementById("customername").defaultValue==document.getElementById("customername").value ||document.getElementById("customername").value==''){
      		document.getElementById('errorspan').innerHTML = "You have not entered your Name"; 
      		error=1;
      }
      if (document.getElementById("telephone").defaultValue==document.getElementById("telephone").value || document.getElementById("telephone").value==''){
      		if (error == 1){
      		document.getElementById('errorspan').innerHTML += " and Telephone Number";
      		}else{
      		document.getElementById('errorspan').innerHTML = "You have not entered your Telephone Number";
      		}
      		error = 2;
      }
      if (error == 0){
      	
       
      var poststr = "customername=" + escape(encodeURI( document.getElementById("customername").value )) +
      				"&telephone=" + escape(encodeURI( document.getElementById("telephone").value )) +
      				"&postcode=" + escape(encodeURI( document.getElementById("postcode").value )) +
      				"&mailfrom=" + escape(encodeURI( document.getElementById("mailfrom").value )) +
      				"&mailto=" + escape(encodeURI( document.getElementById("mailto").value )) +
      				"&html=" + escape(encodeURI( document.getElementById("html").value )) +
      				"&subject=" + escape(encodeURI( document.getElementById("subject").value )) +
      				"&use_names=" + escape(encodeURI( document.getElementById("use_names").value )) +
      				"&show_name=" + escape(encodeURI( document.getElementById("show_name").value )) +
      				"&show_email=" + escape(encodeURI( document.getElementById("show_email").value )) +
      				"&ajax=" + escape(encodeURI( document.getElementById("ajax").value ));
      				
      makePOSTRequest('http://w3.reactor15.com/cgi-bin/public/ajaxmail.cgi', poststr);
      // end if error
      }
   }