var http_request = false;
   var localWhereToPut = "";
   
   function makePOSTRequest(url, parameters, whereToPut) {
      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;
      }
      localWhereToPut = whereToPut;
	  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 makePOSTRequest2(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 "";
        }
        http_request.open('POST', url, false);
        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);
        ///alert(http_request.status);
        if (http_request.readyState == 4) 
            {
            if (http_request.status == 200) 
                {
                return http_request.responseText;
                }
            }
        }
   
   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById(localWhereToPut).innerHTML   = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
    function get(obj, whichPage, whereToPut, whatToPost) {
     makePOSTRequest(whichPage, whatToPost, whereToPut);
    }
   
    function postEncode (clearString) 
    {
        if (typeof clearString == "undefined")
        {
            return "";
        }    
        var output = '';
        var x = 0;
        clearString = clearString.toString();
        var regex = /(^[a-zA-Z0-9_.]*)/;
        while (x < clearString.length) 
        {
            var match = regex.exec(clearString.substr(x));
            if (match != null && match.length > 1 && match[1] != '') 
            {
                output += match[1];
                x += match[1].length;
            } 
            else 
            {
                if (clearString[x] == ' ')
                    output += '+';
                else 
                {
                    var charCode = clearString.charCodeAt(x);
                    var hexVal = charCode.toString(16);
                    output += '%' + ( hexVal.length < 2 ? '0' : '' ) + hexVal.toUpperCase();
                }
              x++;
            }
        }
        return output;
    }