var http_request=false;function makePOSTRequest(url,parameters,handlingFunction){http_request=false;if(window.XMLHttpRequest){http_request=new XMLHttpRequest();if(http_request.overrideMimeType){http_request.overrideMimeType('text/html');}}else if(window.ActiveXObject){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=handlingFunction;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);}