/**
 *
 * @type is typescript
 * @td use better logic for every content load
 */
var loadJsURL = function(url) {

    var canJsLoad = function(url) {
        if (!url) return false;
        var scripts = document.getElementsByTagName('script');
        for (var i = scripts.length; i--;) {
            // *td
            // better with substring or pos, thinking of // start
            if (scripts[i].src == url) return false;
        }
        return true;
    }

    // Load js url
    var insertJsUrl = function(url) {
        var script = document.createElement('script');
        script.setAttribute('src', url);
        document.body.appendChild(script);
    }

    if ( canJsLoad(url) ) {
        insertJsUrl(url)
    }
}

// example
// loadJsURL('www.website.com/embed.js')