function check(k){
var kf;
if(k=='hiyake'){kf = document.form1.check1}
if(k=='nikibi'){kf = document.form2.check2}
if(k=='tarumi'){kf = document.form3.check3}

ch = 0;
for (i=0; i< kf.length; i++){
if (kf[i].checked){
	ch += 1;
}
}

if(ch <= 2){
page  = "a";
}else if(ch <=6){
page  = "b";
}else{
page  = "c";
};

w = window;
if ((w == window) || w.closed) {
       w = open(k+"_"+page+".html","ans","width=500,height=600,scrollbars=yes");
       } else {
           w.location.href = k+"_"+page+".html";
       w.focus();
       }

}