i am making a dynamic page to embeding videos, but i want help

i want something like this
http://sdafdsfds.comuf.com/videos/nowvideo.php?id= 3viebgyywmc7w

i creat
http://sdafdsfds.comuf.com/videos/nowvideo.php
now can any one help me that how i can make this dynamic and it detects the id of the video and play the video pleaseeeeeeeeeeeeeeeeeeeee help me

here is working demo : http://www.webvideoshare.com/videos/...=3viebgyywmc7w


HTML Code:
<!doctype html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en"> <![endif]-->
<!--[if IE 7]> <html class="no-js ie7 oldie" lang="en"> <![endif]-->
<!--[if IE 8]> <html class="no-js ie8 oldie" lang="en"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en"> <!--<![endif]-->
<head>
	<link rel="shortcut icon" href="http://www.webvideoshare.com/favicon.ico" type="image/icon" /> <link rel="icon" href="http://www.webvideoshare.com/favicon.ico" type="image/icon" />
		<title>http://embed.nowvideo.eu/ - WebVideoShare.com</title>
		<meta charset="utf-8">
       
	<link rel="stylesheet" href="http://www.webvideoshare.com/css/style.css">
	<link rel="stylesheet" href="http://www.webvideoshare.com/css/navigation-narrow.css">
	<script src="http://www.webvideoshare.com/js/plugins.js"></script>
	<script src="http://www.webvideoshare.com/js/script.js"></script>

</head>
<body>
	<header>
		
		<!-- close #header-top-container -->
		
		
		
		<div id="header-gradient">
			
			
	
	<div id="main" role="main">	
		
		
		<div class="bread-crumbs"><span>You are here:</span>  <a href="../index.php">Home</a> &rsaquo; Videos</div>
		
		
		<div class="content-container">
			<br>
			<div class="container_24" style="width:1024px">
       <div class="grid_16 suffix_1" style="width:1024px">        
       	<center>
								<script type="text/javascript"><!--
	google_ad_client = "ca-pub-2419487760378836";
	/* Raheel */
	google_ad_slot = "4037408005";
	google_ad_width = 728;
	google_ad_height = 90;
	//-->
	<!--</script>
	<script type="text/javascript"
	src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>							</center><br>
								
								<div style="margin-left:5%;float:left;margin-top:20px;">
								
								<script type="text/javascript"><!--
	google_ad_client = "ca-pub-2419487760378836";
	/* 160 600 wide skyscraper */
	google_ad_slot = "9935456174";
	google_ad_width = 160;
	google_ad_height = 600;
	//-->
	</script>
	<script type="text/javascript"
	src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>								</div>
								<div style="margin-left:10px;float:left;margin-top:20px;">
								<iframe width="540" height="400" frameborder="0" src="http://embed.nowvideo.eu/embed.php?v=&width=600&height=480" scrolling="no"></iframe>
								<br>
								<p style="background-color:#CC0000; width:530px;height:50px; padding:5px; font:10px Verdana; color:#FFF;"><b> Disclaimer:Webvideoshare.com is only videos embedded website.Every video is found here from Third party videos hosting website .We donot host any of this video part.Video Part is embedded here from Youtube,Dailymotion and other video hosting website.Contact to these video hosting website for any video removal.</b></p>
								</div>
								<div style="margin-left:10px;float:left;margin-top:20px;">
									<script type="text/javascript"><!--
	google_ad_client = "ca-pub-2419487760378836";
	/* 160 600 wide skyscraper */
	google_ad_slot = "9935456174";
	google_ad_width = 160;
	google_ad_height = 600;
	//-->
	</script>
	<script type="text/javascript"
	src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>								</div></center>

    <div class="clear"></div>
    </div>
  </div>
			
			
			
			
			
			<div class="clearfix"></div>
				
			
		</div><!-- close .content-container -->
		
	</div><!-- close #main -->
	
	
	
	<div id="footer-gradient"></div>
	<footer>
		<div id="footer-base">
			<div id="footer-base-content">

				
			
			<div class="clearfix"></div>
			</div><!-- close #footer-base-content -->
			
		</div>
		
	</footer>
	
</body>
</html>