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

var active_tab = 'Investing';

function dataRatesChangeTab(obj, evt, tab) {
  var previous_tab = active_tab;
  active_tab = tab;
  
  if(document.getElementById('dataRatesTabTable')) {
    var cells = document.getElementById('dataRatesTabTable').rows[0].cells;
    for(i = 0; i < cells.length; i++) {
      if(cells[i].style) {
        if(cells[i].id == 'dataRatesTab' + tab) {
          cells[i].style.backgroundColor = '#bbccee';
        }
        else {
          cells[i].style.backgroundColor = '#eeeeee';
        }
      }
    }
  
    var blocks = document.getElementById('dataRatesBody').childNodes;
    for(i = 0; i < blocks.length; i++) {
      if(blocks[i].style) {
        if(blocks[i].id == 'dataRatesBlock' + tab) {
          blocks[i].style.display = 'block';  
        }
        else {
          blocks[i].style.display = 'none';  
        }
      }
    }
  }
}

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';
    }
  }	
}