Creating a prompt with a one touch button inorder to create shortcut to android homescreen
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I am new to android development and do not know the specific prompt and create codes to accomplish the following. 

I have a website ( http://www.hibbertmcgee.com ) that, when someone logs into from a mobile device, I would like them to be prompted to add the site shortcut to their homescreen. I have accomplished this before on apple ios using the following code.

    <meta name="apple-mobile-web-app-capable" content="yes">
    <link rel="apple-touch-icon-precomposed" href="img/shortcut-icon.png" />
    <link rel="stylesheet" href="css/add2home.css">

    <script type="text/javascript">
    var addToHomeConfig = {
	    animationIn: 'bubble',
	    animationOut: 'drop',
	    lifespan:30000,
	    expire:2,
	    touchIcon:true,
	    message:'Thank your for visiting our site on your <strong>%device</strong>. 
        To add our web app, click this icon `%icon` and select "Add to Homescreen" .'
    };
    </script>
    <script type="application/javascript" src="js/add2home.js"></script>
I am able, for the most part, to detect an android device, however I do not know the scripting to bring up a prompt to allow people to bookmark the site to their home screen. I don't need you to write the code for me(unless you really want to), just point me in a general direction or toward a specific resource.

Thanks So Much,

~Andrew Glover
 