//画像ロールオーバー
function initRollovers() {
   if (!document.getElementById) return
   
   var aPreLoad = new Array();
   var sTempSrc;
   var aImages = document.getElementsByTagName('img');

   for (var i = 0; i < aImages.length; i++) {      
      if (aImages[i].className == 'mov') {
         var src = aImages[i].getAttribute('src');
         var ftype = src.substring(src.lastIndexOf('.'), src.length);
         var hsrc = src.replace(ftype, '_r'+ftype);

         aImages[i].setAttribute('hsrc', hsrc);
         
         aPreLoad[i] = new Image();
         aPreLoad[i].src = hsrc;
         
         aImages[i].onmouseover = function() {
            sTempSrc = this.getAttribute('src');
            this.setAttribute('src', this.getAttribute('hsrc'));
         }   
         
         aImages[i].onmouseout = function() {
            if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_r'+ftype, ftype);
            this.setAttribute('src', sTempSrc);
         }
      }
   }
}

window.onload = initRollovers;


//FAQレイヤー制御
function openFaq(itemId) {
	var elem, disp;

	if (document.all) {
		elem = document.all(itemId);
	} else if (document.getElementById) {
		elem = document.getElementById(itemId);
	} else {
		alert("このブラウザではスタイルシートをオフにしないと階層メニューが隠れたままです。");
	}
	disp = elem.style.display;
	if(disp == "block") {
		disp = "none";
	} else {
		disp = "block";
	}
	elem.style.display = disp;
}