function xmlhttpPost(strURL,arg,callback){var xmlHttpReq=false;var self=this;if(window.XMLHttpRequest){self.xmlHttpReq=new XMLHttpRequest();}
else if(window.ActiveXObject){self.xmlHttpReq=new ActiveXObject("Microsoft.XMLHTTP");}
self.xmlHttpReq.open('POST',strURL,true);self.xmlHttpReq.setRequestHeader('Content-Type','application/x-www-form-urlencoded');self.xmlHttpReq.onreadystatechange=function(){if(self.xmlHttpReq.readyState==4){callback(self.xmlHttpReq.responseText);}}
self.xmlHttpReq.send("arg="+arg);}