function check_vpn(link)
{
	if (!invpn)
	{
		window.location = vpn_login_url;
		setTimeout("", 10000);
		return false;
	}
	else
		return true;
}
	

function flip_file(id, name)
{
  if ($(name+'_'+id).className == 'expanded')
  {
    $(name+'_'+id).className = 'not-expanded';
    Element.hide(name+'_files_'+id);
  }
  else if ($(name+'_'+id).className == 'not-expanded')
  {
    $(name+'_'+id).className = 'expanded';
    Element.show(name+'_files_'+id);
  }
      
  if ($(name+'_'+id).className == 'expanded end')
  {
    $(name+'_'+id).className = 'not-expanded end';
    Element.hide(name+'_files_'+id);
  }
  else if ($(name+'_'+id).className == 'not-expanded end')
  {
    $(name+'_'+id).className = 'expanded end';
    Element.show(name+'_files_'+id);
  }
}


function flip_tab(tab)
{
  if ( $('tab_'+tab).className.indexOf('active') > 0)
    return false;  
  tabs = ['feed', 'upload', 'rapidshare'];
  // tabs = ['feed', 'upload'];
  tabs.each(function(name) {
    //alert(name +'  '+ tab);
    if (name == tab) {
      $('tab_'+name).className = $('tab_'+name).className + ' active';
      Element.show('form_'+name)
    }
    else {
      $('tab_'+name).className = $('tab_'+name).className.replace(' active', ''); 
      Element.hide('form_'+name)
    }    
  });
  
  return false;  
}