function createREQ() {
try {
     req = new XMLHttpRequest(); /* e.g. Firefox */
     } catch(err1) {
       try {
       req = new ActiveXObject('Msxml2.XMLHTTP'); /* some versions IE */
       } catch (err2) {
         try {
         req = new ActiveXObject("Microsoft.XMLHTTP"); /* some versions IE */
         } catch (err3) {
          req = false;
         }
       }
     }
     return req;
}
function requestGET(url, query, req) {
	myRand=parseInt(Math.random()*99999999);
	req.open("GET",url+'?'+query+'&rand='+myRand,true);
	req.send(null);
}
function requestPOST(url, query, req) {
	req.open("POST", url,true);
	req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	req.send(query);
}
function doCallback(callback,item) {
	eval(callback + '(item)');
}

function doAjax(url,query,callback,reqtype,getxml) {
// create the XMLHTTPRequest object instance
	var myreq = createREQ();

	myreq.onreadystatechange = function() {
	if(myreq.readyState == 4) {
	   if(myreq.status == 200) {
		  var item = myreq.responseText;
		  if(getxml==1) {
			 item = myreq.responseXML;
		  }
		  doCallback(callback, item);
		}
	  }
	}
	if(reqtype=='post') {
		requestPOST(url,query,myreq);
	} else {
		requestGET(url,query,myreq);
	}
}

function mPopup(text){
	mPopupText = text.substring(text.indexOf("<mPopup>") + 8 ,text.indexOf("</mPopup>"));
	mPopupParent = text.substring(text.indexOf("<mPopupParent>") + 14 ,text.indexOf("</mPopupParent>"));
	mPopupWindow = text.substring(text.indexOf("<mPopupWindow>") + 14 ,text.indexOf("</mPopupWindow>"));
	document.getElementById(mPopupParent).innerHTML = mPopupText; // mPopupText
	ADD_DHTML(mPopupWindow);
	dd.elements[mPopupWindow].maximizeZ();
}

function mPopupSwapImage(text){
	mPopupImage = text.substring(text.indexOf("<mPopupImage>") + 13 ,text.indexOf("</mPopupImage>"));
	mPopupParent = text.substring(text.indexOf("<mPopupParent>") + 14 ,text.indexOf("</mPopupParent>"));
	document.getElementById(mPopupParent).innerHTML = mPopupImage; // mPopupText
}