function openClose(id)
{
   if(document.getElementById) {
      element = document.getElementById(id);
   } else if(document.all) {
      element = document.all[id];
   } else return;

   if(element.style) {
      if(element.style.display == 'none' ){
         element.style.display = 'block';
      } else {
         element.style.display = 'none';
      }
   }
}

function jah_switch(url,target)
{

    if (document.getElementById(target).innerHTML != '')
    {
        document.getElementById(target).innerHTML = '';
    }
    else
    {

        jah(url,target);
    }

}
function jah(url,target) {
    // native XMLHttpRequest object
        document.getElementById(target).innerHTML = '<span class="ajah_waiting"><a href="java script:jah(\''+url+'\',\''+target+'\');">sending...</a></span>';
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = function() {jahDone(target);};
        req.open("GET", url, true);
        req.send(null);
    // IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = function() {jahDone(target);};
            req.open("GET", url, true);
            req.send();
        }
    }
}    

function jahDone(target) {
    // only if req is "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            results = req.responseText;
            document.getElementById(target).innerHTML = results;
        } else {
            document.getElementById(target).innerHTML="jah error:\n" +
                req.statusText;
        }
    }
}