//レイヤーの表示非表示
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

//NN4.0レイヤー対策
function MM_reloadPage(init) {  //reloads the window if Nav4 resized

  if (init==true) with (navigator) {if 
((appName=="Netscape")&&(parseInt(appVersion)==4)) {

    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; 
onresize=MM_reloadPage; }}

  else if (innerWidth!=document.MM_pgW || 
innerHeight!=document.MM_pgH) location.reload();

}

// レイヤーの内容かえ
function MM_setTextOfLayer(objName,x,newText) { //v4.01
  if ((obj=MM_findObj(objName))!=null) with (obj)
    if (document.layers) {document.write(newText); document.close();}
    else innerHTML = newText;
}

// トップページ、キャンペーンバージョンとの表示切替
function TOP_cp(x){
if( x == 0 ){
document.getElementById("wrap_all_1").style.display = "none" ;
document.getElementById("wrap_all_2").style.display = "block";
}
else if( x == 1){
document.getElementById("wrap_all_1").style.display = "block" ;
document.getElementById("wrap_all_2").style.display = "none";
}
return;
}

//　他ページからトップへ帰ったときは、通常トップを表示させる
function TOP_chk(){
var TOP = document.referrer.search("www.jschool-web.com") ;

if(TOP > 0){
document.getElementById("wrap_all_1").style.display = "none" ;
document.getElementById("wrap_all_2").style.display = "block";
}
else if(TOP == -1){
document.getElementById("wrap_all_1").style.display = "block" ;
document.getElementById("wrap_all_2").style.display = "none";
	}
return;
}