function dropDown(Id)
{
  document.getElementById(Id).style.display='block';
}

function dropUp(Id)
{
  document.getElementById( Id ).style.display='none';
}

function request(url,method,qs,callback,cbparam)
{
    var myRequest = null;
    var ready  = false;

    try {
        if(window.XMLHttpRequest) {
            // Gecko (Firefox, Moz), KHTML (Konqueror, Safari), Opera, Internet Explorer 7
            myRequest = new XMLHttpRequest(); 
        } else if(window.ActiveXObject) {  
            myRequest = new ActiveXObject("Microsoft.XMLHTTP"); // Internet Explorer 4,5,5.5,6
        } 
    } catch(e) {
        return false;
    }
    
    ready = false;
    method = method.toUpperCase();

    try {
        if((method=="GET") || (method=="HEAD"))
        {
            myRequest.open(method, url+qs, true);
        }
        else if(method=="POST")
        {
            myRequest.open(method, url, true);
            myRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        }
        myRequest.onreadystatechange = function(){
            if(myRequest.readyState==4 && !ready) {
                ready = true;
                callback(myRequest,cbparam);
            } else {
            return false;
            }
        }
        myRequest.send(qs);
    }
    catch(e) {
        return false;
    }
    return true;
}


function updateContent(rq,id) {
    document.getElementById(id).innerHTML=rq.responseText;
}