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pbassut/gist:598df0c36377d44407fa

Last active August 29, 2015 14:13
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gistfile1.php
<script>
$("#my_upload_form").bind("submit", function() {
var ext = $('#my_file_field').val().split('.').pop().toLowerCase();
if($.inArray(ext, ['gif','png','jpg','jpeg']) == -1) {
alert('invalid extension!');
}
});
</script>
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