function XHConn(){
var xmlhttp,bComplete=false
try{xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");}
catch(e){try{xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");}
catch(e){try{xmlhttp=new XMLHttpRequest();}
catch(e){xmlhttp=false;}}}
if(!xmlhttp)return null
this.connect=function(sURL,sMethod,sVars,fnDone){
superVars=sVars
if(!xmlhttp)return false
bComplete=false
sMethod=sMethod.toUpperCase()
try{
if(sMethod=="GET"){
xmlhttp.open(sMethod,sURL+"?"+sVars,true)
sVars=""}
else{
xmlhttp.open(sMethod,sURL,true)
xmlhttp.setRequestHeader("Method","POST "+sURL+" HTTP/1.1")
xmlhttp.setRequestHeader("Content-Type",
"application/x-www-form-urlencoded")}
xmlhttp.onreadystatechange=function(){
if(xmlhttp.readyState==4&&!bComplete){
bComplete=true
fnDone(xmlhttp)
xmlhttpCompletado(superVars)
}}
xmlhttp.send(sVars)}
catch(z){return false;}
return true}
return this}