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deleting data from database using checkbox

hi ,

i have to delete data from database using checkbox.but there is one problem when i check any checkbox all checkboxes are automatically checked.but following codes are not execute.please help me.
PHP Code: if($c[$j]==on)
{
echo"";
echo"
";
//echo$row1[$i];
$d="deletefromfeedbackwheref_id='$a[$j]'";
mysqli_query($con1,$d);
}

here is my full code
PHP Code:

Posted On: Thursday 25th of October 2012 11:15:42 PM Total Views:  138
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