The if elseif else statement in coldfusion is very easy as you can see below. The example below will display Hello World if the variable myvariable has that value, Goodbye World if the variable myvariable is equal to Goodbye or Where am I if it is neither of those values.
<cfset myvariable = "Hello">
<cfif myvariable IS "Hello">
Hello World
<cfelseif myvariable IS "Goodbye">
Goodbye World
<cfelse>
Where am I?
</cfif>