function tabsClick(obj, evt, type, tab) {

	var lis = document.getElementById('tabs_' + type).getElementsByTagName('li');
  for(i = 0; i < lis.length; i++) {
    lis[i].className = '';
  }	
	obj.parentNode.className = 'selected';

	var tables = document.getElementById(type + 'Tables').getElementsByTagName('table');
  for(i = 0; i < tables.length; i++) {
    //alert(tables[i].id);
    if(tables[i].id == type + '_' + tab) {
      tables[i].style.display='block';
    }
    else {
      tables[i].style.display='none';
    }
  }	
	
}

function emailToFriend(article_id) {
  var newwin = window.open('/email-to-friend.php?article_id=' + article_id, 'Email', 'width=240,height=560');
}