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Traverse the cursor through text box with navigation(arrow) keys

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Traverse the cursor through text box with navigation keys
else if(e.which==37)
else if(e.which==40)
else if(e.which==38)
<td><input type="text"></td>
<td><input type="text"></td>
<td><input type="text"></td>
<td><input type="text"></td>

<td><input type="text"></td>
<td><input type="text"></td>
<td><input type="text"></td>
<td><input type="text"></td>



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