Detecting AdBlock Script?

[kohkindachi]

Does any one has a good way to detect adblock and deny access the visitors?

This site >> http://adblockdetector.com/ is abit stupid, because they can't detect me using it.

Someone over at DP has a good idea about chekcing the height within a DIV(where ads are), if the DIV height is 0 or etc. An error will show. This is the code, but i tried it and is not working. Can someone fix it?

<div id="ads_left">
<--ad code goes here-->
</div>


Now at the bottom of my site I put this script :

<script type="text/javascript">
var ads = new Array('ads_left');
var msg = 'message goes here';

onload=function() {
    for(i in ads){
        el = document.getElementById(ads[i]);
        if(el){
            if (el.offsetHeight == 0){
                el.innerHTML = msg;
            }
        }
    }
} 
</script>

kohkindachi Reviewed by kohkindachi on 5th Feb 2010. Detecting AdBlock Script? Does any one has a good way to detect adblock and deny access the visitors? This site >> http://adblockdetector.com/ is abit stupid, because they can't detect me using it. Someone over at DP has a good idea about chekcing the height within a DIV(where ads are), if the DIV height is 0 or etc. An error will show. This is the code, but i tried it and is not working. Can someone fix it? <div id="ads_left"> <--ad code goes here--> </div> Rating: 5

[Hyperz]

You could check the DOM to see if the ad was added when the page has loaded. But if you're gonna block users who block adds the only thing you're gonna be doing is piss them off and they wont come back.

Edit: this site has a neat little background when a user blocks adds http://cubeupload.com/ , I'd suggest doing something similar if you care about traffic at all.