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;
            document.getElementById('response').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   function ciao(url) {
      var poststr = "&remove=1" ;
      makePOSTRequest(url, poststr);
      document.getElementById('customer_call_back_window').style.visibility = 'hidden';
   }   
   function set(obj, url) {
      var poststr = "id=" + encodeURI(obj.value) ;
      makePOSTRequest(url, poststr);
   }
   function init(obj, url) {
      var poststr = "" ;
      makePOSTRequest(url, poststr);
      //show() ;
   }
   function get(obj) {
      var poststr = "name=" + encodeURI( document.getElementById("name").value ) +
                    "&lastname=" + encodeURI( document.getElementById("lastname").value ) +
                    "&gender=" + encodeURI( document.getElementById("gender").value ) +
                    "&date=" + encodeURI( document.getElementById("date").value ) +
                    "&hour=" + encodeURI( document.getElementById("hour").value ) +
                    "&phone=" + encodeURI( document.getElementById("phone").value ) +
                    "&message=" + encodeURI( document.getElementById("message").value );
      makePOSTRequest('customer_call_back_process.php', poststr);

	    setTimeout('hide()',5000) ;
   }
function show()
{
  document.getElementById('customer_call_back_window').style.visibility = 'visible';
}
function hide2(timeout, url)
{
  var poststr = "&timeout=" + encodeURI(timeout) ;
      makePOSTRequest(url, poststr);
  document.getElementById('customer_call_back_window').style.visibility = 'hidden';
}
function hide()
{
  //this.parentNode.style.visibility = 'hidden';
  document.getElementById('customer_call_back_window').style.visibility = 'hidden';
}