Using Content of 1 variable as an other variable name!!!!

Hi

I have a big problem with my codes , i need to make some check box but i dont know how many i need at the first , the number of check box pass from other page to me and case to case is different.

so i try to make them by <cfloop> :

<cfset sdate="2011/01/01">

<cfset edate="2011/01/10">

<cfset TotalDays=(day(edate)-day(sdate))>

       <form name="hasankachal" action="dtest.cfm" method="post" enctype="multipart/form-data">

        <cfloop index="daylist" from="0" to="#totaldays#">

            <input type="checkbox" name="D<cfoutput>#daylist#</cfoutput>"><cfoutput>#day(dateadd("D",daylist,dateformat(sdate,"YYYY/MM/DD")))# #dateformat(sdate,"mmm")#</cfoutput><BR>

        </cfloop>

            <input type="hidden" name="sdate" value="<cfoutput>#sdate#</cfoutput>">

            <input type="hidden" name="edate" value="<cfoutput>#edate#</cfoutput>">

            <input type="hidden" name="totaldays" value="<cfoutput>#totaldays#</cfoutput>">

            <br>

            <input type="submit" name="test" value="Submit">

    </form>

in this case for example i need 10 check box so by this methode i will make D0,D1,D2, . . . .

the problem started from now , becasue the name of check boxes in <input> made by <cfloop> i need to read it by cfloop again :

    <cfloop index="daylist" from="0" to="#form.totaldays#">

            <cfif  FORM.?????????  is "on">

                <cfoutput>#day(dateadd("D",daylist,dateformat(sdate,"YYYY/MM/DD")))# #dateformat(sdate,"mmm")#</cfoutput><BR>

            </cfif>

    </cfloop>

i try to put the name of variable in othe variable :

<cfset mycheckbox="form.d"&daylist>

     <cfif #mycheckbox# is "on">

          <cfoutput>Selected</cfoutput>

     </cfif>

but its not working , is there any idea how can i make it and check it ?