captcha.cfm

<cfoutput>

<cfset randNums1 = RandRange(2,9)>

<cfset randNums2 = RandRange(2,9)>

<cfset randNums3 = RandRange(2,9)>

<cfset randNums4 = RandRange(2,9)>

<cfset randNums5 = RandRange(2,9)>

<cfset alphas = "A,B,C,D,E,F,G,H,I,J,K,L,M,N,P,Q,R,S,T,U,V,W,X,Y,Z">

<cfset randChar1 = RandRange(1,25)>

<cfset randChar2 = RandRange(1,25)>

<cfset randChar3 = RandRange(1,25)>

<cfset randChar4 = RandRange(1,25)>

<cfset randAlpha1 = ListGetAt(alphas,randChar1,',')>

<cfset randAlpha2 = ListGetAt(alphas,randChar2,',')>

<cfset RandomChars = "#randAlpha1##randNums1##randAlpha2##randNums2##randNums3##randChar3##randChar4##randNums5#">

<form action="#CGI.script_name#" method="post">

<!---

This is the hidden field that will flag form

submission for data validation.

--->

<input type="hidden" name="submitted" value="1" />

<!---

This is the hidden field that we will check the

user's CAPTCHA text against. This is an encrypted

field so that spiders

--->

<input type="hidden" name="captcha_check" value="#RandomChars#" >

<p>

<cfimage action="captcha" height="75" width="363" text="#RandomChars#" difficulty="medium"

fonts="verdana,arial,times new roman,courier" fontsize="28" />

</p>

<label for="captcha">

Please enter text in image:

</label>

<input type="text" name="captcha" id="captcha" value="" />

<input type="submit" value="Submit" />

</form>

</cfoutput>