function GoMenu(aa) {

if (aa == "link11") {window.open("/so1/index.asp","_top")}
if (aa == "link12") {window.open("/so1/ec.asp","_top")}
if (aa == "link13") {window.open("/so1/ceo.asp","_top")}
if (aa == "link14") {window.open("/so1/history.asp","_top")}
if (aa == "link15") {window.open("/so1/ci.asp","_top")}
if (aa == "link16") {window.open("/so1/company.asp","_top")}
if (aa == "link17") {window.open("/so1/location.asp","_top")}

if (aa == "link21") {window.open("/so2/index.asp","_top")}
if (aa == "link22") {window.open("/so2/gra.asp","_top")}
if (aa == "link23") {window.open("/so2/sih4.asp","_top")}
if (aa == "link24") {window.open("/so2/nf3.asp","_top")}
if (aa == "link25") {window.open("/so2/wf6.asp","_top")}

if (aa == "link31") {window.open("/so3/index.asp","_top")}
if (aa == "link32") {window.open("/so3/f_infor.asp","_top")}
if (aa == "link33") {window.open("/so3/s_infor.asp","_top")}

if (aa == "link41") {window.open("/so4/index.asp","_top")}
if (aa == "link42") {window.open("/so4/ir.asp","_top")}

if (aa == "link51") {window.open("/so5/index.asp","_top")}
if (aa == "link52") {window.open("/so5/faq.asp","_top")}
if (aa == "link53") {window.open("/so5/contact.asp","_top")}

if (aa == "link61") {window.open("/so6/index.asp","_top")}
if (aa == "link62") {window.open("/so6/insa.asp","_top")}
if (aa == "link63") {window.open("/so6/welfare.asp","_top")}
if (aa == "link64") {window.open("/so6/recruit.asp","_top")}

if (aa == "link72") {window.open("/etc/sitemap.asp","_top")}
if (aa == "link73") {window.open("/eng/index.asp","_top")}

}