function WinOps(){
        window.open("genchi.html","genchi","width=490,height=570,top=20,left=20,menubar=yes");
 }

function WinOps2(){
        window.open("model.html","model","width=490,height=450,top=20,left=20,menubar=yes");
 }

function WinOps3(){
        window.open("room_a.html","model","width=520,height=700,top=20,left=20,menubar=yes");
 }

function WinOps4(){
        window.open("room_f.html","model","width=520,height=700,top=20,left=20,menubar=yes");
 }