function httpPost(tag, qstring) {
	var qstring = (qstring == null) ? "" : qstring;

	var xmlHttpReq = false;
	var self = this;
	requestAjax(qstring, self, xmlHttpReq);
	self.xmlHttpReq.onreadystatechange = function() {
		if (self.xmlHttpReq.readyState == 4) {
				updatepage(self.xmlHttpReq.responseText, tag);
				findJS(self.xmlHttpReq.responseText);
		}
	}
}

function retrieveXml(qstring) {
	var qstring = (qstring == null) ? "" : qstring;
	var tocurrentmodule = (tocurrentmodule == null) ? true : tocurrentmodule;

    	var xmlHttpReq = false;
    	var self = this;
	requestAjax(qstring, self, xmlHttpReq);
    	self.xmlHttpReq.onreadystatechange = function() {
        	if (self.xmlHttpReq.readyState == 4) {
			processXml(self.xmlHttpReq.responseText);
        	}
    	}
}

function retrieveXmlLive(qstring, varname) {
	var qstring = (qstring == null) ? "" : qstring;
	var tocurrentmodule = (tocurrentmodule == null) ? true : tocurrentmodule;

	var xmlHttpReq = false;
	var self = this;
	requestAjax(qstring, self, xmlHttpReq);
    	self.xmlHttpReq.onreadystatechange = function() {
        if (self.xmlHttpReq.readyState == 4) {
		eval(varname+".processXml(self.xmlHttpReq.responseText)");
        }
    }
}

function requestAjax(qstring, self, xmlHttpReq) {
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    self.xmlHttpReq.open('POST', "./ajax/sendtofriend.php", true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.send(qstring);
}

function makequerystring(qstring, attribute, value) {
	if (qstring != "") {
		qstring += "&";
	}
	qstring += attribute+"="+value;
	return qstring;
}

function updatepage(str, tag){
    document.getElementById(tag).innerHTML = str;
}

function findJS(ajaxreturnvalue){
	var javascriptFound = ajaxreturnvalue.match('<script>');
	
	if(javascriptFound){
		var ajaxreturnvalue = ajaxreturnvalue.split('<script>');
		var ajaxreturnvalue = ajaxreturnvalue[1].split('</script>');
		var ajaxreturnvalue = ajaxreturnvalue[0];
		eval(ajaxreturnvalue);
	}
}

if (typeof DOMParser == "undefined") {
   DOMParser = function () {}

   DOMParser.prototype.parseFromString = function (str, contentType) {
      if (typeof ActiveXObject != "undefined") {
         var d = new ActiveXObject("MSXML.DomDocument");
         d.loadXML(str);
         return d;
      } else if (typeof XMLHttpRequest != "undefined") {
         var req = new XMLHttpRequest;
         req.open("GET", "data:" + (contentType || "application/xml") +
                         ";charset=utf-8," + encodeURIComponent(str), false);
         if (req.overrideMimeType) {
            req.overrideMimeType(contentType);
         }
         req.send(null);
         return req.responseXML;
      }
   }
}