!Help me before I go crazy!

OK, I’ve been searching the internet for days now and I getting very frustrated. I’m rather new with flash so please bear with me. I made a contact form in flash and what I wasnt to do is validate that the fields are filled in. I found a number of ways to do it, but none work. I found one for my email field and that works perfect its
if (!email.length || email.indexOf("@") == -1 || email.indexOf(".") == -1) {
getURL (“javascript:NewWindow(‘invalidemail.html’,‘redeemWin’,‘408’,‘150’,‘yes’)”);

Now, For my other boxws the submit button starts with this
on (release) {
if (fullname.text == null || fullname.text == “”) {
getURL (“javascript:NewWindow(‘invalidname.html’,‘redeemWin’,‘408’,‘150’,‘yes’)”);

Then Have and else if then the email validation. The meathod above opens the invalid name file every time, evin if you enter something. I’ve also tried. if (!fullname.length == 0), that didn’t work. I found numerous tutorials that used if (!fullname eq “”) , that didn’t work either. I’ve tried a ton of different versions of all of these. but none work! I dodn’t know what to do. Please help me. I will provide the .fla file if anybody needs to take a peek at it.

Thanks so much

John

Link to FLA