How to programmatically cancel filtering?

How to programmatically cancel filtering?

sd_zuosd_zuo Posts: 78Questions: 1Answers: 0
edited September 2011 in General
The user has input some string in the filter box.
How to cancel the filter with javascript?
I've tried to use fnFilter('') which works somewhat. However, if the datatable contains checkboxes, the selection state of those boxes will be reset after calling the fnFilter function on IE6. Is there another approach to preserve form element values after canceling the data filter.
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