function load_timeline()
{
    var node_id  = $('node_id').innerHTML;
    var url = "/timeline/"+node_id;
    new Ajax.Request(url, {
	method: "get",
	onSuccess:function(httpObj){
	    var res = get_response_text(httpObj);
	    $('timeline').innerHTML = res;
	    if (res == '<!--NONE-->' || res == '') {
		// new Effect.BlindUp('timeline');
		$('timeline').hide();
            }
	},
	onFailure:function(httpObj){
	    $('timeline').innerHTML = "";
    	}
    });      
}

function reload_tw()
{
    $('tw_loading').show();
    $('tws').hide();
    var node_id  = $('node_id').innerHTML;
    var url = "/timeline/tw/"+node_id;
    new Ajax.Request(url, {
	method: "get",
	onSuccess:function(httpObj){
	    var res = get_response_text(httpObj);
	    $('tws').innerHTML = res;
	    $('tw_loading').hide();
	    new Effect.BlindDown('tws');
		//$('tws').show();
	},
	onFailure:function(httpObj){
	    $('tws').innerHTML = "";
	    $('tw_loading').hide();
    	}
    });      
}