URL rewrite to lower with JavaScript

URL rewrite to lower with JavaScript

<script type="text/javascript">
var URL=document.location;
//This makes the URL become a string, without it, an error would
//occur.
URL+="";

if(URL.toLowerCase() != URL){ //Check if the URL needs modified
//If so, then replace it.
document.location.replace(URL.toLowerCase());

//I used replace because I didn't want the user to hit the 
//back button and then hit the URL that they came from, thus 
//returning them to the same place.
}
</script>