function file_change(sender,args) { check_upload_queue(sender); }

        function check_upload_queue(ctrl) {
	        var btn = document.getElementById("btn-upload");
	        if (ctrl.GetFiles().length > 0) btn.className = "upload";
	        else btn.className = "upload-d";
        }

        function add_file(ctrl,el) {
	        ctrl.AddFile();
	        if (ctrl.FileCount == ctrl.MaximumFileCount) el.className = "add-d";
        }

        function remove_file(ctrl,item) {
	        if (ctrl.FileCount > 1) ctrl.RemoveFileAt(item);
	        //else { ctrl.ClearFiles();ctrl.AddFile(); }
	        //else ctrl.ClearFiles();
	        //ctrl.ClearFiles();

	        if (ctrl.FileCount < ctrl.MaximumFileCount) document.getElementById("btn-add").className = "add";
        }


        function upload_begin(sender,args) {
	        //UploadDialog.Show();
        }
        
        function querySt(ji) 
        {
            hu = window.location.search.substring(1);
            gy = hu.split("&");
            for (i=0;i<gy.length;i++) 
            {
                ft = gy[i].split("=");
                if (ft[0] == ji) 
                {
                    return ft[1];
                }
            }
        }


        function upload_end(sender,args) {
        window.location.href("Media.aspx?area=Media&type=" + querySt("type") + "&redirect=true");
        }

        function generate_file_list(ctrl,cur) {
	        var files = ctrl.GetFiles();
	        var out = "";
	        var cls = "done";

	        for (var f in files) {
		        var file = files[f].substring(files[f].lastIndexOf("\\") + 1,files[f].length);
		        var li = "<li class=\"" + cls + "\">";
		        if (file == cur) {
			        li = (ctrl.Uploading) ? "<li class=\"cur\">" 	: "<li class=\"done\">";
			        cls = "";
		        }
		        out += li + file + "</li>";
	        }

	        return "<ul>" + out + "</ul>";
        }

        //	File size functions
        function format_file_size(n,fmt) {
	        if (!fmt) {		//	no formatting specified; automatically select the best format
		        if (n < 1000) fmt = "b";
		        else if (n < 1000000) fmt = "kb";
		        else if (n < 1000000000) fmt = "mb";
		        else fmt = "gb";
	        }

	        switch(fmt.toLowerCase()) {
		        case "kb": return String((n * 0.001).toFixed(2)) + " KB";break;
		        case "mb": return String((n * 0.000001).toFixed(2)) + " MB";break;
		        case "gb": return String((n * 0.000000001).toFixed(2)) + " GB";break;
		        default: return String(n.toFixed(2)) + " B";
	        }
        }

        function get_percentage(n) { return String(Math.round(n * 100)); }

        //	Time functions
        function format_time(t,txt) {
	        var s = Math.floor(t);
	        var m = Math.floor(s / 60);
	        var h = Math.floor(m / 60);

	        if (!txt) {
		        //	Output will always have be least mm:ss
		        s = pad_time(s % 60);
		        m = pad_time(m % 60) + ":";
		        h = (h == 0) ? "" : pad_time(h % 60) + ":";

		        return (h + m + s);
	        } else {
		        var secs = (s > 1) ? "seconds" : "second";			//	plural & singular second units
		        var mins = (m > 1) ? "minute" : "minute";			//	plural & singular minute units
		        var hours = (h > 1) ? "hours" : "hour";				//	plural & singular hour units

		        s = (s > 0) ? String(s) + " " + secs : "";			//	string or empty?
		        m = (m > 0) ? String(m) + " " +  mins : "";			//	string or empty?
		        h = (h > 0) ? String(h) + " " + hours : "";			//	string or empty?

		        var out = "";
		        if (h !== "") {										//	longer than an hour
			        out = h;
			        if (m != "") out += ", " + m;					//	at least one minute
			        if (s != "") out += ", " + s;					//	at least one second
		        }

		        if (m !== "" && out == "") {						//	shorter than an hour, greater than 60 seconds
			        out += m;
			        if (s != "") out += ", " + s;					//	at least one second
		        }

		        if (s !== "" && out == "") out = s;					//	at least one second

		        if (out == "") out = "less than 1 second";			//	less than a second

		        return out;
	        }
        }

        function pad_time(t) { return String(((t > 9) ? "" : "0") + t); }

        function get_file_position(ctrl,cur) {
	        var files = ctrl.GetFiles();
	        for (var i = 0; i < files.length; i++) {
		        var file = files[i].substring(files[i].lastIndexOf("\\") + 1,files[i].length);
		        if (file == cur) return String(i + 1);
	        }

	        return "1";
        }

        function init_upload(ctrl) {
	        ctrl.Upload();
	        UploadDialog.Show();
        }

        (new Image()).src = "../images/vertical.png";