Recognizing links in selection

[Guezt]

Hello! I'm writing bookmarklet right now which sends the links from selection to external server. I don't know how to write part responsible for extract links from selection. For instance, i need:

1) Recognizing links in selection written in plain text, for example:

http://www.x.com/dddffsfds/fsdfdsfdsfds
http://www.x.com/dddffsfds/fsdfdsfdsfds
http://www.x.com/dddffsfds/fsdfdsfdsfds
http://www.x.com/dddffsfds/fsdfdsfdsfds
http://www.x.com/dddffsfds/fsdfdsfdsfds

2) Recognizing links in selection written in html, for example:

<a href="http://www.x.com/dddffsfds/fsdfdsfdsfds">CLUTTER - IGNORE IF HERE IS ALSO http://(...) and so on</a>CLUTTER<a href="http://www.x.com/dddffsfds/fsdfdsfdsfds">CLUTTER - IGNORE IF HERE IS ALSO http://(...) and so on</a>CLUTTER<a href="http://www.x.com/dddffsfds/fsdfdsfdsfds">CLUTTER - IGNORE IF HERE IS ALSO http://(...) and so on</a>

How I can handle this both methods simultaneously? Any idea? That's is my current code:

// Helper - remove duplicates from array.
Array.prototype.unique = function () {
	var r = new Array();
	o:for(var i = 0, n = this.length; i < n; i++)
	{
		for(var x = 0, y = r.length; x < y; x++)
		{
			if(r[x]==this[i])
			{
				continue o;
			}
		}
		r[r.length] = this[i];
	}
	return r;
}

// We are getting selection

selection = ???????????

// We are looking for links in selection and make array from they

files = ???????????????

if (files.length < 1)
{
  unique = files.unique();
  urls = unique.join('|');
  location.href 'http://x/imports/new?from=bookmarklet&urls=' + urls
}
else
{
  alert('There is no any links in selection.');
}

[Guezt]

Nobody have any idea? :-(