// JavaScript Document

// preloadImages
img = new Array("gakkai_on.jpg","kaiin_on.jpg","nyukai_on.jpg","ippan_on.jpg","link_on.jpg");
bfImg = new Array();
for(i=0; i<img.length; i++) {
  bfImg[i] = new Image();
  bfImg[i].src = img[i];
}

// rollover
function smartRollover() {

  var str= location.href;
  var fname= str.substring(str.lastIndexOf("/")+1);
  var ppp= "img/menu/";

  if(document.getElementsByTagName) {
    var images = document.getElementsByTagName("img");
    for(var i=0; i < images.length; i++) {
      if(images[i].getAttribute("src").match("_off."))
      {
      images[i].onmouseover = function() {this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));}
      images[i].onmouseout = function() {this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));}
      }
    }
  }
}

if(window.addEventListener)
  {window.addEventListener("load", smartRollover, false);}
else if(window.attachEvent)
  {window.attachEvent("onload", smartRollover);}


//ポップアップメニュー

function pop_on_1(menu_no){  //"メニュー1-4"にマウスオン
    document.getElementById("pop_" + menu_no).style.display="block";
		// 関係ないサブメニューは非表示にする
	
    for(var k=1; k < 5; k++) {
			if(menu_no != k){
				document.getElementById("pop_" + k).style.display="none";
			}
		}
}
function pop_out_1(menu_no){  //"メニュー1-4"からマウスアウト
    document.getElementById("pop_" + menu_no).style.display="none";
}