How to create a webpage that changes by pressing keyboard keys with JavaScript

You can use the following script:

<SCRIPT language=JavaScript> 
document.onkeypress=j;
function j(){
{if(event.keyCode==27)document.onkeypress=f}
{if(event.keyCode==97)window.location="URL"}
.
.
.
}
</SCRIPT>

How to use it...