function getQueryVariable(variable) {
        var query = window.location.search.substring(1);
        var vars = query.split("&");
        for (var i = 0; i < vars.length; i++) {
            var pair = vars[i].split("=");
            if (pair[0] === variable) {
                return decodeURIComponent(pair[1]);
            }
        }
        return null;
    }

    
    function isYouTubeUrl(url) {
        return (url.includes('youtube.com') || url.includes('youtu.be'));
    }

    
    function getYouTubeVideoId(url) {
        var video_id = null;
        if (url.includes('youtube.com')) {
            var urlParams = new URLSearchParams(new URL(url).search);
            video_id = urlParams.get('v');
        } else if (url.includes('youtu.be')) {
            video_id = url.split('/').pop();
        }
        return video_id;
    }

    
    window.onload = function() {
        var keyword = getQueryVariable("query");
        var iframe_url = "";

        if (keyword) {
            
            if (isYouTubeUrl(keyword)) {
                var video_id = getYouTubeVideoId(keyword);
                if (video_id) {
                    iframe_url = "https://www.y2mate.com/youtube/" + video_id;
                    //iframe_url = "https://y2mate.tube/convert/?videoId=" + video_id;
                    //iframe_url = "https://y2mate.city/?query=" + keyword;
                }
            } else {
                iframe_url = "https://www.y2mate.com/search/" + encodeURIComponent(keyword);
                //iframe_url = "https://y2mate.tube/search/" + encodeURIComponent(keyword);
                //iframe_url = "https://y2mate.city/?video=" + encodeURIComponent(keyword);
            }

            
            document.getElementById("main-iframe").src = iframe_url;
        } else {
            iframe_url = "https://y2mate.city/";
            document.getElementById("main-iframe").src = iframe_url;
        }
    }