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IF statement help

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Dec 08.2004

I am new to Java script and have some code below that I could use help with. Basically I need anything typed in without xxx3477 to send a message box back to the user. Any help is appreciated.
Thanks,

output.println(“if(this.document.NewTicket.username.value.substring(4,7) != ‘3477’) { alert(‘Please enter your username xxx3477.’); this.document.NewTicket.username.focus(); } else {“);

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@Willy_DuittDec 08.2004 — Try: if(document.NewTicket.username.value.match(/P6I/gi)){
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