using a variable as a variable name

i'm attempting to make a more or less dynamic querying page for my site... where the user can choose which columns to be shown in the result set.. since i don't want to hardcode everything in i've attempted to loop through a few things

here's my problem

<!--- query for client columns --->
<cfquery name="clientinfo" datasource="#request.library#" cachedwithin="#createtimespan(0,1,0,0)#">
	SELECT	field_name,
			lang1,
			lang2
	FROM	field
	WHERE	page_type like 'contacts'
</cfquery>

...
...
<cfset contact_fields=form.contact_fields>

<cfquery name="something" datasource="#request.library#">
	SELECT	<cfloop list="#contact_fields#" index="name">
				#name# as 'contact_name',
			</cfloop>
			...
			...
</cfquery>


<cfloop query="contactinfo">
	<cfif listfind(contact_fields,"#name#")>
		<td class="ptrlist">
			[COLOR="Red"]#contact_#field_name##[/COLOR]
		</td>
	</cfif>
</cfloop>

Code (markup):

so i'll try and explain what's going on a bit.. (although this is just a snippet of a much larger app it should be enough to get my problem across)

i've got some select boxes for filters and fields
- the user selects how to filter the query and which fields to show in the results and submits

from that i do the query
- in the query each different select box of fields gets a prefix (ie contact_) for the contact select box

my problem is in the output.
- i loop through to determine which fields are to be displayed based on what the user has chosen

here i need to display fields such as contact_phone, contact_id, etc. however i need to do this in a loop which means i'm using a variable within a variable
#contact_#field_name##

this obviously doesn't work
does anyone know a way around this?

sorry if my description is a little vague.. i can't think of a good way to explain it

 

i figured it out....... if anyone else runs into a similar problem in the future..

i replaced the #contact_#field_name## with
<cfset thisfield="something.client_"&field_name&"[#something.currentrow#]">
#evaluate(thisfield)#