i need help on this
<html> <head> <script language="JavaScript"> </script> <title>Compute quantity</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <form name="test"> <table width="53%" border="0"> <tr> <td height="21" colspan="2"> </td> <td width="28%"><div align="center"><strong><font size="1" face="Verdana, Arial, Helvetica, sans-serif">Qty 1</font></strong></div></td> <td width="28%"><div align="center"><strong><font size="1" face="Verdana, Arial, Helvetica, sans-serif">Qty 2</font></strong></div></td> <td width="28%"><div align="center"><strong><font size="1" face="Verdana, Arial, Helvetica, sans-serif">Final Qty for (Qty1 & Qty2)</font></strong></div></td> </tr> <tr> <td width="10%" height="30"><font size="1" face="Geneva, Arial, Helvetica, sans-serif">ITEM ONE</font></td> <td width="6%"> <input type="checkbox" name="checkbox[]" value="check"> </td> <td width="28%"> <input type="text" name="entry1[]"> </td> <td width="28%"><input type="text" name="entry2[]" ></td> <td width="28%"><input type="text" name="entry3[]" ></td> </tr> <tr> <td height="24"><font size="1" face="Geneva, Arial, Helvetica, sans-serif">ITEM TWO</font></td> <td><input type="checkbox" name="checkbox[]" value="check"></td> <td><input type="text" name="entry1[]"></td> <td><input type="text" name="entry2[]"></td> <td><input type="text" name="entry3[]" ></td> </tr> <tr> <td colspan="5"> <div align="center"> <input type="button" name="Submit" value="Calculate"> </div></td> </tr> </table> </form> </body> </html>