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Asked: 2026-05-25T17:27:18+00:00

I am using a javascript code to display an ad in my page .

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I am using a javascript code to display an ad in my page . The javascript code for the corresponding ad display is as shown below :

var ad = {
    encode: function(str) {
        return escape(this._utf8_encode(str));
    },

    _utf8_encode: function(str) {
        str = str.replace(/\r\n/g, "\n");
        var utftext = "";

        for (var n = 0; n < str.length; n++) {

            var c = str.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if ((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }
        return utftext;
    }
}

var partnerId = "b7241ebe72fa74ce";
var siteId = "11738";

var targetparams = new Array();
targetparams['ad_platform'] = "ros";
var targetparams_str = "";
for (var key in targetparams) {
    if (targetparams_str != "") {
        targetparams_str += "||";
    }
    targetparams_str += ad.encode(key) + "=>" + ad.encode(targetparams[key]);
}
targetparams_str = ad.encode(targetparams_str);

var m3_u = 'http://ads.admarvel.com/fam/javascriptGetAd.php';
var m3_r = Math.floor(Math.random() * 99999999999);
document.write("<scr" + "ipt type='text/javascript' src='" + m3_u);
document.write("?partner_id=" + partnerId);
document.write('&amp;site_id=' + siteId);
document.write('&amp;target_params=' + targetparams_str);
document.write('&amp;version=1.5');
document.write('&amp;language=javascript');
document.write('&amp;format=wap');
document.write('&amp;cb=' + m3_r);
document.write("'><\/scr" + "ipt>");

The above code is inside a element in the HTML body.
Now in my page I want to include an external js library protoaculous.1.8.2.min.js and when I place this js file in the head , somehow , my ad disapperars , but as soon as I remove the external library , the ad is displayed .

The outline of my page is as below :

<head>
<script type="text/javascript" src="http://www.ectnews.com/shared/ajax/protoaculous.1.8.2.min.js"></script>
<body>
    <div>
        //Javascript code for the ad display
    </div>
</body>

Following are the links to the scenario I have created in my test server :

Non-Working html :

http://m.smartdevicemedia.com/test_external_js.htm

Working html :

http://m.smartdevicemedia.com/test_external_js_good.htm

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1 Answer

  1. Editorial Team

    I suspect that the problem is here:

    var targetparams = new Array();
targetparams['ad_platform'] = "ros";
var targetparams_str = "";
for (var key in targetparams) {
    if (targetparams_str != "") {
        targetparams_str += "||";
    }
    targetparams_str += ad.encode(key) + "=>" + ad.encode(targetparams[key]);
}

    The Prototype library adds a bunch of methods to the Array prototype, and your “for … in” loop will see those. There’s no reason for “targetparams” to be an Array instance, however. It should just be an object:

    var targetparams = {};

    In fact, from that code above there’s no reason for “targetparams” to even exist. You could simply initialize the string to the single key that you’ve actually got hard-coded there in the lines above the loop:

    var targetparams_str = ad.encode("ad_platform") + "=>" + ad.encode("ros");

    It also seems very odd that you’d re-encode the whole string after building up the string from encoded pieces.

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