Error with Jump to Javascript statement

I have the following statement being used in the Jump to command.
= "javascript:void(window.open('" &
http://domainname/ReferralForm.aspx?ReferralID= "& Fields!REF_ID.Value &
','_blank'))"
When I try to preview the report, I get the following error in the task list
The hyperlink expression for the textbox "REF_ID" contains a colon or a line
terminator. Colons and line terminators are not valid in expresssions.This should work:
="javascript:void(window.open('http://domainname/ReferralForm.aspx?ReferralID="
& Fields!REF_ID.Value & "','_blank'))"
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"scuba79" <scuba79@.discussions.microsoft.com> wrote in message
news:D6B0AAD2-44FB-48F4-9DD2-F598FFD7D52E@.microsoft.com...
>I have the following statement being used in the Jump to command.
> = "javascript:void(window.open('" &
> http://domainname/ReferralForm.aspx?ReferralID= "& Fields!REF_ID.Value &
> ','_blank'))"
>
> When I try to preview the report, I get the following error in the task
> list
> The hyperlink expression for the textbox "REF_ID" contains a colon or a
> line
> terminator. Colons and line terminators are not valid in expresssions.