// JavaScript Document

  var top_ad_index = 0;
  var side_ad_index = 0;
  var tile_ad_index = 5;
  
  var num_top_ads = topAds.length;
  var num_side_ads = sideAds.length;
  var num_tile_ads = tileAds.length;
  
  var top_ad_interval = null;
  var side_ad_interval = null;
  var tile_ad_interval = null;
  
  var rotation_interval = 15 * 1000;
  
  function startAdRotation() {
	 top_ad_interval = setInterval("swapTopAd()", rotation_interval);
	 side_ad_interval = setInterval("swapSideAd()",rotation_interval);
	 tile_ad_interval = setInterval("swapTileAds()", rotation_interval);
  }
  
  function stopAdRotation() {
	clearInterval(top_ad_interval);
	clearInterval(side_ad_interval);
	clearInterval(tile_ad_interval);
  }
  
  function swapTopAd() {
	top_ad_index++;
	if (top_ad_index >= num_top_ads) {
	  top_ad_index = 0;	
	}
	if (topAds[top_ad_index][0] != 'http://' && topAds[top_ad_index][0] != '') {
	  document.getElementById('topadlink1').href = '/out.php?id=' + topAds[top_ad_index][3];
	  document.getElementById('topadlink1').className = 'clickable';
	  document.getElementById('topadlink1').onclick = 'return true;';
	}
	else {
	  document.getElementById('topadlink1').href = '#';
	  document.getElementById('topadlink1').className = 'not_clickable';
	  document.getElementById('topadlink1').onclick = 'return false;';
	}
	document.getElementById('topadlink1').title = topAds[top_ad_index][2];
	document.getElementById('topad1').src = topAds[top_ad_index][1];
  }
  
  function swapSideAd() {
	side_ad_index++;
	if (side_ad_index >= num_side_ads) {
	  side_ad_index = 0;	
	}
	if (sideAds[side_ad_index][0] != 'http://' && sideAds[side_ad_index][0] != '') {
	  document.getElementById('sideadlink1').href = '/out.php?id=' + sideAds[side_ad_index][3];
	  document.getElementById('sideadlink1').className = 'clickable';
	  document.getElementById('sideadlink1').onclick = 'return true;';
	}
	else {
	  document.getElementById('sideadlink1').href = '#';
	  document.getElementById('sideadlink1').className = 'not_clickable';
	  document.getElementById('sideadlink1').onclick = 'return false;';
	}
	document.getElementById('sideadlink1').title = sideAds[side_ad_index][2];
	document.getElementById('sidead1').src = sideAds[side_ad_index][1];
  }
  
  function swapTileAds() {
	for (var i = 1; i <= 6; i++) {
	  tile_ad_index++;
	  if (tile_ad_index >= num_tile_ads) {
		tile_ad_index = 0;
	  }
	  if (tileAds[tile_ad_index][0] != 'http://' && tileAds[tile_ad_index][0] != '') {
	    document.getElementById('tileadlink' + i).href = '/out.php?id=' + tileAds[tile_ad_index][3];
	    document.getElementById('tileadlink' + i).className = 'clickable';
	    document.getElementById('tileadlink' + i).onclick = 'return true;';
		document.getElementById('tileadlink' + i).target = '_blank';
	  }
	  else {
	    document.getElementById('tileadlink' + i).href = '#';
	    document.getElementById('tileadlink' + i).className = 'not_clickable';
	    document.getElementById('tileadlink' + i).onclick = 'return false;';
		document.getElementById('tileadlink' + i).target = '_self';
	  }
	  document.getElementById('tileadlink' + i).title = tileAds[tile_ad_index][2];
	  document.getElementById('tilead' + i).src = tileAds[tile_ad_index][1];
	}
  }