Prueba de alguna de estas dos maneras
Código PHP:
<%
url = "urldelvinculo"
area = "areadelvinculo"
%>
<script language="JavaScript" type="text/javascript">
function ventanaSecundaria (){
window.open("vs.asp?id=<%=url%>&area=<%=area%>","ventana1" ,"width=550,height=800,left=200,scrollbars=YES" )
}
</script>
<a href="#" onclick="window.open('vs.asp?id=<%=url%>&area=<%=area%>','ventana1' ,'width=550,height=800,left=200,scrollbars=YES');return false;">Abrir</a>
<br />
<a href="javascript:ventanaSecundaria ();">Abrir</a>
Suerte