How to select multiple and/or all check boxes?

[kalpana]

Thanks for the reply. I used similar to above code for selecting all check boxes. I need to know how to select multiple check boxes now.
All the properties are same for all of the check boxes, except value.
value is given like this xxx-123|1|, xxx-124|2|..etc

eg: check box -0 is for checking all
check box-1
check box-2
check box-3
check box-4
How to select check box-1,2 or only one check box-3

If any one can help me, know how to make it work all in the above conditions in one place..

Thanks