SSRS Report with field.vaule in a link not opening in a new window.

Hi guys

I've built a report that has links to an internal ticket desk system. The link is the ticket ID number which brings the user of the report directly to the ticket live on our ticket desk server. And it's working great. Here is the code I used:

"http://moon/TicketDesk/TicketEditor/Display/" & (Fields!TicketId.Value)

However my employer wants the link to open in a new window and I'm having a spot of bother getting it to open using the following code:

="javascript:void(window.open("http://moon/TicketDesk/TicketEditor/Display/" & (Fields!TicketId.Value)', '_blank'))" 

Any Ideas or advice is greatly appreciated.

Thanks in advance ;)