Control Vertical Scrolling?

Best way to deal with this turned out to be changing the controls for up/down and left/right. Instead of arrow keys, I use I/K, J/L respectively.

In /lib/apps.js:

switch(event.keyCode){
			case 73: // UP
				callback(player, jsnes.Controller.BUTTON_UP); break;
			case 75: // Down
				callback(player, jsnes.Controller.BUTTON_DOWN); break;
			case 74: // Left
				callback(player, jsnes.Controller.BUTTON_LEFT); break;
			case 76: // Right
				callback(player, jsnes.Controller.BUTTON_RIGHT); break;

And in /shortcode-template.php:

<tr>
        <td><?php echo __("Left"); ?></td>
        <td><?php echo __("J"); ?></td>
        <td><?php echo __("Num-4"); ?></td>
    <tr>
        <td><?php echo __("Right"); ?></td>
        <td><?php echo __("L"); ?></td>
        <td><?php echo __("Num-6"); ?></td>
    </tr>
    <tr>
        <td><?php echo __("Up"); ?></td>
        <td><?php echo __("I"); ?></td>
        <td><?php echo __("Num-8"); ?></td>
    </tr>
    <tr>
        <td><?php echo __("Down"); ?></td>
        <td><?php echo __("K"); ?></td>
        <td><?php echo __("Num-2"); ?></td>
    </tr>

Hi Williams!
Thanks a ton for the solution. It helped me a lot. However, I improvised a bit, since in my browser, <tab> key was also making the page scroll. I then replaced the tab key with shift key (case 16), using the modifications similar to those told by you. It works nicely.

Thanks again,
Ankit

Hi Williams!
I changed the input setting like you but no thing happens,what can I do?
thank you

i have same problem