Bunu begendim :

var nw;
function poptastic(url) {
        nw= window.open(url, 'name', 'height=500,width=1000,status=yes,toolbar=no,menubar=no,location=no');
        if (window.focus) { nw.focus() }
    }

 

ve birde :

 <a href="javascript:poptastic('mscarihareketlerimdetay.aspx?n=<%#Eval("[Evrak No]")%>&r=<%#Eval("cha_recno")%>')"><%#Eval("[Evrak No]")%></a>