Pass selected values from a checkbox

hello everybody
i was looking for a similar thread but i couldn't find the answer i'm need, so here's my question.
i have an checkbox populated from a dynamic LOV. it is showing me the correct values, but i haven't been able to receive the selected values on the other page. i always receive the first value.
For example
My options ar: code 1
code 5
code 9
code 10
When I checked 5 and 9 and submit the page (i submit the page to itself), my the values in the URL are siomething like '....%2C5:9', but the only checked value is 5.
How must i send the values to receive them in the correct way? I tried 'checkbox' and 'multiselect list' and they had the same behaviour.
Thanks in advance.
Daniel.

Hi Daniel
This happens because : (colon) is used to separate parameters in the URL as well.
To solve it, I used the following code in a after submit computation on the checkbox field:
replace(:p500_checkbox, ':', '|') -- value becomes 1|2|3|4 (URL friendly)
Then in a before header computation:
replace(:p500_checkbox, '|', ':') -- value goes back to 1:2:3:4
It worked well, though I am sure there must be a more intelligent way to do it...
Luis

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