function OpenWin(){
    win=window.open("https://www.melnet.co.jp/sslmail/nsi/mailform1/","new","width=600,height=750,scrollbars=yes");
}

function OpenWindow(){
   win=window.open("https://www.melnet.co.jp/sslmail/mailform/nsi/mailform3/promis.html","new1","width=600,height=410,scrollbars=yes");
}

function OpenWindown(){
   win=window.open("https://www.melnet.co.jp/sslmail/mailform/nsi/mailform2/promis.html","new1","width=600,height=750,scrollbars=yes");
}