Hide value from url

This forum has been a greate help, I learned a lot by asking questions here.
Have a customized query that generated a link icon to another page. The url pass the primary key along with some item values to the linked page. It works.
My question is if I compared my url link (by hovering the mouse to the link icon) to a link that was generated by APEX using same primary key and items, I see my homemade url exposes all the item values that I have passed to. However, apex generated page only exposed the primary key value, the rest seems a combination of hex charactier. How can I make it behave like the apex generated link icon ? thanks.
example of the generated url by hovering the mouse on the link icon
from APEX:( just the item part in the url), it seems apex always prefix 2c for each susequent item value after primary key)
PID,ITEM1,ITEM2:496%2C128%2C128
my own
PID,ITEM1,ITEM2:496,128M,ercury%20Beauty%20/%20Bun%20Test
Wan

Wan,
I am not sure if there is any direct way to do that, however %2c is the standard HTML url encoding character which represents a comma(",") and %20 is for space.
http://www.w3schools.com/TAGS/ref_urlencode.asp
If you are interested in hiding values in the url you can encrypt the item values before page branch and decrypt using the same algorithm once you reach to the target page. But this will slow down the page branching and also it require extra efforts to develop page branching algorithm of each url navigation. Thanks.
Regards,
Manish

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