Javascript Randomizer help.

[Bennett 🚀]

<script type="text/javascript">

var Route=new Array()

Route[0] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon001.png' />";
Route[1] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon004.png' />";
Route[2] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon008.png' />";
Route[3] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon012.png' />";
Route[4] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon016.png' />";
Route[5] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon020.png' />";
Route[6] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon024.png' />";
Route[7] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon028.png' />";
Route[8] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon032.png' />";
Route[9] = "<img src='http://www.pokemonelite2000.com/sprites/dpicon/dpicon036.png' />";

var pokemon = Route.length;
var whichRoute=Math.round(Math.random()*(pokemon-1));
function showRoute(){document.write(Route[whichRoute]);}
showRoute();
</script>

I am trying to use this code that I found and edited. I am asking if I could put a <div id="route_pokemon"></div> in there, so that when I want it, I can call it when I need it. How could I do this?