Display a message box inside of <cfif> block

[goatboy]

Can anyone show me an example of displaying a JavaScript alert message from inside of a <cfif> conditional statement.
Generally this is what I am trying to do:
<CFIF verifyStudent.RecordCount GT 0>
DISPLAY A ALERT BOX TO THE USER (OK ONLY)
<CFLOCATION................>
<CFELSE>
<CFLOCATION......................>
</CFIF>

Any assistance would be appreciated.
Thanks

 

[SnakeHollywood]

<cfif your evaluation>
<script>
alert('youe have done something');
</script>
</cfif>