function ondemand(count){

if(count==1)

window.open("http://www.tatsumi.co.jp/ondemand/tokutyou.html","tokutyou","width=600,height=650,scrollbars=yes,location=no,menubar=no,resizable=yes,toolbar=no,status=yes");

if(count==2)

window.open("http://www.tatsumi.co.jp/ondemand/w_ondemand.html","w_ondemand","width=600,height=650,scrollbars=yes,location=no,menubar=no,resizable=yes,toolbar=no,status=yes");

if(count==3)

window.open("http://www.tatsumi.co.jp/ondemand/looking.html","looking","width=600,height=650,scrollbars=yes,location=no,menubar=no,resizable=yes,toolbar=no,status=yes");

if(count==4)

window.open("http://www.tatsumi.co.jp/ondemand/rist.html","rist","width=600,height=650,scrollbars=yes,location=no,menubar=no,resizable=yes,toolbar=no,status=yes");
}