How to Embed Flash in TinyMCE Rich Text Editor

the question changed a bit.

please forget uploadify.

how can I embed flash in tinymce by entering url

for example http://abc.com/swf/1234.swf

in a textbox and pressing a button?

I found embed.js (jscripts/tiny_mce/plugins/media/js/embed.js)

and this code is there (last version of tinymce (3.5.8))

function writeEmbed(cls, cb, mt, p) {
	var h = '', n;

	h += '

';

	document.write(h);
}

what must I write inestead of those Question marks to embed flash?

protected void Button1_Click(object sender, EventArgs e)
    {
        string url = TextBox1.Text;
        string[] Arry = url.Split('/');
        string filename = Arry[Arry.Length - 1];
        txttiny.Text += ?????????????????????????????????
        Label1.Text = txttiny.Text;
    }

Thnks a lot!