//mi miAHAHlib.js



  function createREQ(){

    try{

       http = new XMLHttpRequest();

    }catch(e){

      try{

         //http= new ActiveXObject("Msxml2.XMLHTTP");

         http= new ActiveXObject("Microsoft.XMLHTTP");

      }catch(e){

         http= false;

      }

    }

    return http;  

  }

  function requestGet(url,query,req){

       var q = query.split("|");  

       var param1 = q.splice(0,1);

       var param2=  q.splice(0,2);      

      param1 =encodeURIComponent(param1);      

       var solicitud = url+'?param1='+param1+'&param2='+param2;       

      req.open("GET",solicitud,true);

      req.send(null);      	

  }

  function requestPost(url,query,req){  

	

    query = "obj="+query;

    req.open("POST",url,true);     

	req.send(query);          

  }

   function doCallback(callback,item){

        //que ejecute la funcion     

    eval(callback +'(item)');

   }



  function doAjax(url,query,callback,reqtype,getxml){       

    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);    

    }   

    

  }