function openwin1(){
window.open("Plan/Plan050.html","plan","width=730,height=610,scrollbars=yes");
}

function openwin2(){
window.open("Plan/Plan100.html","plan","width=730,height=610,scrollbars=yes");
}

function openwin3(){
window.open("Plan/Plan200.html","plan","width=730,height=610,scrollbars=yes");
}

function openwin4(){
window.open("Plan/Plan300.html","plan","width=730,height=610,scrollbars=yes");
}

function openwin5(){
window.open("Plan/Plan.html","plan","width=730,height=610,scrollbars=yes");
}