Getting time and date on a file name

JavaScript
1

This javascript which I’m using works with a webcam to record a video.

The end result, after the file is recorded generates a file name, as you can see from the code below: Video+video_id.

I recorded a file today April 30th, and the file was named: Video1335806296490.flv. I don’t understand where the time and date are in this file name, and I don’t understand why all the recorded files begin with 1335. Can you shed some light here?

(Or suggest an alternative tweak to make file names more recognizable?)

Thanks.


		<script type="text/javascript">
				var video_id	= get_id();
				var filename	= get_parm('filename');
				if(filename == '' || filename == null)
					{
					filename = 'Video'+video_id;
					}

				var flashvars = {
				filename: filename,
				rtmpPath: "rtmp://xxxxxxxxxxxxxxx",
				finishURL: "videoplayer.htm?filename="+filename,
				};
				var params = {
				menu: "false",
				scale: "noScale",
				allowScriptAccess: "always",
				bgcolor: "#000000"
				};
				var attributes = {
				id:"webcamrecording"
				};
				swfobject.embedSWF("recording.swf", "recording", "620", "470", "9", "expressInstall.swf", flashvars, params, attributes);

				function get_id()
					{
					var newDate = new Date();
					return newDate.getTime();
					}

				function get_parm(name)
					{
					name 		= name.replace(/[\\[]/,"\\\\\\[").replace(/[\\]]/,"\\\\\\]");
					var regexS	= "[\\\\?&]"+name+"=([^&#]*)";
					var regex	= new RegExp( regexS );
					var results	= regex.exec( window.location.href );
					if( results == null )
						{
						return "";
						}
					else
						{
						return results[1];
						}
					}

		</script>












<script type="text/javascript">
var video_id	= get_id();
var filename	= get_parm('filename');
if(filename == '' || filename == null)
{
filename = 'Video'+video_id;
}

var flashvars = {
filename: filename,
xxxxxxxxxxxxxxxxxxxxxxxxxx	
etc. etc. etc.		};
var attributes = {
id:"recorder"
};

function get_id()
{
var newDate = new Date();
return newDate.getTime();
}

		</script>