reporting services 超链接如何弹出窗口

reporting services 超链接怎么弹出窗口
在reporting services中如何实点击报表中的超链接弹出新窗口,

="javascript:window.open('http://tt-pc/ReportServer/Pages/ReportViewer.aspx?%2fxm2%2fstorereport1 &store=Fields!store.Value');window.event.returnValue=false;"

这样可以弹出窗口,但是取不到store的值啊??????????

------解决方案--------------------
javascript:window.open('http://tt-pc/ReportServer/Pages/ReportViewer.aspx?%2fxm2%2fstorereport1 &store='& Fields!store.Value' & );window.event.returnValue=false;"