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/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;
      }
      document.getElementById('myspan').innerHTML = '<img src="images/loading1.gif" align="absmiddle"><font color=5100C0> &#1604;&#1591;&#1601;&#1575; &#1705;&#1605;&#1740; &#1589;&#1576;&#1585; &#1705;&#1606;&#1740;&#1583;&#1548; &#1662;&#1740;&#1594;&#1575;&#1605; &#1588;&#1605;&#1575; &#1583;&#1585; &#1581;&#1575;&#1604; &#1575;&#1585;&#1587;&#1575;&#1604; &#1605;&#1740; &#1576;&#1575;&#1588;&#1583;!'; 
      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;
            document.getElementById('myspan').innerHTML = result;            
            document.getElementById('myform').reset();            
         } else {
            document.getElementById('myspan').innerHTML = '&#1607;&#1606;&#1711;&#1575;&#1605; &#1575;&#1585;&#1587;&#1575;&#1604; &#1662;&#1740;&#1594;&#1575;&#1605; &#1582;&#1591;&#1575;&#1740;&#1740; &#1585;&#1582; &#1583;&#1575;&#1583;!';
         }
      }
   }
   
   function get(obj) {
   	      var poststr = "UserID=" + encodeURI( document.getElementById("UserID").value ) +
                    "&Subject=" + encodeURI( document.getElementById("Subject").value ) +
                    "&UserName=" + encodeURI( document.getElementById("UserName").value ) +
                    "&UserEmail=" + encodeURI( document.getElementById("UserEmail").value ) +
                    "&UserIP=" + encodeURI( document.getElementById("UserIP").value ) +
                    "&Message=" + encodeURI( document.getElementById("Message").value );
      makePOSTRequest('post.php', poststr);
   }<!-- 

 -->