function jxmlhttp_post( url, params, xmldocs, func, alt_callback_method ) {
 var xmldoc=null;
 if (typeof window.ActiveXObject!='undefined') {
  xmldoc = new ActiveXObject("Microsoft.XMLHTTP");
  if ( alt_callback_method == true ) {
    xmldoc.onreadystatechange = function() {
        if ( xmldoc.readyState == 4 && xmldoc.status == 200 ) {
            func( xmldoc );
        }
    }
  } else {
    xmldoc.onreadystatechange = func;
  }
 }
 else {
  xmldoc = new XMLHttpRequest();
  xmldoc.onload = func;
 }

 if (!xmldoc) return xmldocs;

 xmldoc.open( "POST", url, true );
 xmldoc.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 xmldoc.setRequestHeader("Content-length", params.length);
 xmldoc.setRequestHeader("Connection", "close");
 xmldoc.send( params );

 for (var i=0;i<= xmldocs.length;i++) {
  if (! xmldocs[i]) {
   xmldocs[i]=xmldoc;
   return xmldocs;
  }
 }
 xmldocs[i]=xmldoc;
 return xmldocs;
}

function jxmlhttp_get(url,xmldocs,func)
{
 var xmldoc=null;
 if (typeof window.ActiveXObject!='undefined') {
  xmldoc = new ActiveXObject("Microsoft.XMLHTTP");
  xmldoc.onreadystatechange = func;
 }
 else {
  xmldoc = new XMLHttpRequest();
  xmldoc.onload = func;
 }

 if (!xmldoc) return xmldocs;

 xmldoc.open( "GET", url, true );
 xmldoc.send( null );

 for (var i=0;i<= xmldocs.length;i++) {
  if (! xmldocs[i]) {
   xmldocs[i]=xmldoc;
   return xmldocs;
  }
 }
 xmldocs[i]=xmldoc;
 return xmldocs;
}

function jhide_element(id)
{
 var o=document.getElementById(id);
 if (o) o.style.display='none';
}

function junhide_element(id)
{
 var o=document.getElementById(id);
 if (o) o.style.display='';
}