function vd(obj){
if(document.getElementById){document.getElementById(obj).style.visibility=='hidden'?document.getElementById(obj).style.visibility='':document.getElementById(obj).style.visibility='hidden'}
else if(document.all){document.all(obj).style.visibility=='hidden'?document.all(obj).style.visibility='':document.all(obj).style.visibility='hidden'}
else if(document.layers){document.layers[obj].visibility=='hidden'?document.layers[obj].visibility='':document.layers[obj].visibility='hidden'}
}

function dd(obj){
if(document.getElementById){document.getElementById(obj).style.display=='none'?document.getElementById(obj).style.display='':document.getElementById(obj).style.display='none'}
else if(document.all){document.all(obj).style.display=='none'?document.all(obj).style.display='':document.all(obj).style.display='none'}
else if(document.layers){document.layers[obj].display=='none'?document.layers[obj].display='':document.layers[obj].display='none'}
}

function alldisp(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='t0'+i+'r' } else  { obj='t'+i+'r' } 
        document.getElementById(obj).style.visibility='';
        if(i<10) { obj='t0'+i+'a' } else  { obj='t'+i+'a' } 
        document.getElementById(obj).style.visibility='';
    }
}

function allhide(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='t0'+i+'r' } else  { obj='t'+i+'r' } 
        document.getElementById(obj).style.visibility='hidden';
        if(i<10) { obj='t0'+i+'a' } else  { obj='t'+i+'a' } 
        document.getElementById(obj).style.visibility='hidden';
    }
}

function allroman(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='t0'+i+'r' } else  { obj='t'+i+'r' } 
        document.getElementById(obj).style.visibility='';
        if(i<10) { obj='t0'+i+'a' } else  { obj='t'+i+'a' } 
        document.getElementById(obj).style.visibility='hidden';
    }
}

function alldispa(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='a0'+i } else  { obj='a'+i } 
        document.getElementById(obj).style.visibility='';
    }
}

function allhidea(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='a0'+i } else  { obj='a'+i } 
        document.getElementById(obj).style.visibility='hidden';
    }
}

function newImage(year,month,day,limit,giffile){
    update = new Date(year,month-1,day);
    now = new Date();
    period = (now-update)/(1000*60*60*24);
    if(period <=limit){
        document.write("<IMG SRC='"+giffile+"'>");
    }
}

function alldispty(num) {
    document.getElementById('roman').style.display='';
    document.getElementById('jpn').style.display='';
    alldispa(num);
}

function allhidety(num) {
    document.getElementById('roman').style.display='none';
    document.getElementById('jpn').style.display='none';
    allhidea(num);
}

function pu(cHtml,cTitle,nWidth,nHeight){
	cOption = "width=" + nWidth + ",height=" + nHeight;
	nwin = window.open(cHtml, cTitle, cOption);
	return false; 
}

function alldispb(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='a0'+i } else  { obj='a'+i } 
        document.getElementById(obj).style.visibility='';
    }
}

function allhideb(num) {
    for(i=1;i<=num;i++) {
        if(i<10) { obj='a0'+i } else  { obj='a'+i } 
        document.getElementById(obj).style.visibility='hidden';
    }
}