// pull feeds from youtube
function youtube(keyword, start)
{
    var url = site_url + '/home/youtube/'+keyword+'/'+start;
    new Ajax(url, {
        method: 'get',
        update: _showLoading('youtube'),
        onComplete: function(res){
            $('youtube').setHTML(res);
            _hideLoading('youtube');
            
            // tooltips
	        //var Tips1 = new Tips($$('.Tips1'));
        }
    }).request();
}

// pull feeds from technorati
function technorati(keyword, start)
{
    var url = site_url + '/home/technorati/'+keyword+'/'+start;
    new Ajax(url, {
        method: 'get',
        update: _showLoading('technorati'),
        onComplete: function(res){
            $('technorati').setHTML(res);
            _hideLoading('technorati');
        }
    }).request();
}

// pull feeds from cnet
function cnet(keyword, start)
{
    var url = site_url + '/home/cnet/'+keyword+'/'+start;
    new Ajax(url, {
        method: 'get',
        update: _showLoading('cnet'),
        onComplete: function(res){
            $('cnet').setHTML(res);
            _hideLoading('cnet');
        }
    }).request();
}

// show loading image
function _showLoading(divType)
{
    // show loading bar
    $(divType+'_loading').style.display = 'block';
    // hide content
    $(divType).style.display = 'none';
}

// hide loading image
function _hideLoading(divType)
{
    // hiding loading bar
    $(divType+'_loading').style.display = 'none';
    // show content
    $(divType).style.display = 'block';
}