Problem in spc chart

HI All,

I have three requiremnets --

1. To calculate the upper sepcification limit and lower specification limit based on a calculation by taking values from a table.

2. I have to generate to two spc charts one is based on date and another based on order number. Both the fields are present in the same table. But when user input as date, date based chart should be displayed and same should be applied to oredr number.

3. Is there any way i can display multiple spc charts in single output page.

thx

supriya