Hi, I'm having a bit of trouble with some regular expressions. What I want to do is validate a form field titled 'base'. The data the form field will be collecting is a domain name. I want basically two rules developed with regular expressions. The first is that the domain name can only contin characters A-Za-z0-9 and a hyphen (-). What I have now is <cfelseif REFindNoCase("^-A-Za-z0-9","#form.base#")> but that doesn't work correctly. The second rule I need is that the domain name cannot start nor end with a hyphen and I have no idea where to even start with that one. Please help.