/*----------------------------------------------------------------------*/
/* DOM-ボタン「b」を自動検出、ロールオーバー適用 */
/*----------------------------------------------------------------------*/
window.onload = function(){
  var conf = {
			 className : 'btn',
				postfix   : '_on'
  };
		var imgNodeList = getElementsByClassName(conf.className);
		var node;
		for (var i=0, len=imgNodeList.length; i<len; i++){
		  node = imgNodeList[i];
				node.originalSrc = node.src;
				node.rolloverSrc = node.originalSrc.replace(/(\.gif|\.jpg|\.png)/,conf.postfix+"$1");
				preloadImage(node.rolloverSrc);
				node.onmouseover = function(){
				  this.src = this.rolloverSrc;
				};
				node.onmouseout = function(){
				  this.src = this.originalSrc;
				};
		};
		
		// タグ名による取得
  var tables   = window.document.getElementsByClassName('table01');
		for (var j=0,tlen=tables.length; j<tlen; j++) {
			   var table  = tables[j]; 
		    var lines  = table.getElementsByTagName('tr');
						// forループでクラス名をつけていく。
		    for (var k=0,llen=lines.length; k<llen; k++) {
		    	   var tr = lines[k];
							   if (k%2==0) {
											   tr.setAttribute('class', 'evenline');
					     }
						}
		};			
};
/*----------------------------------------------------------------------*/
/* gnaviドロップダウンメニュー */
/*----------------------------------------------------------------------*/
var DDSPEED = 2;
var DDTIMER = 6;

// main function to handle the mouse events //
function ddMenu(id,d){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearInterval(c.timer);
  if(d == 1){
    clearTimeout(h.timer);
    if(c.maxh && c.maxh <= c.offsetHeight){return}
    else if(!c.maxh){
      c.style.display = 'block';
      c.style.height = 'auto';
      c.maxh = c.offsetHeight;
      c.style.height = '0px';
    }
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }else{
    h.timer = setTimeout(function(){ddCollapse(c)},50);
  }
}

// collapse the menu //
function ddCollapse(c){
  c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

// cancel the collapse if a user rolls over the dropdown //
function cancelHide(id){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearTimeout(h.timer);
  clearInterval(c.timer);
  if(c.offsetHeight < c.maxh){
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }
}

// incrementally expand/contract the dropdown and change the opacity //
function ddSlide(c,d){
  var currh = c.offsetHeight;
  var dist;
  if(d == 1){
    dist = (Math.round((c.maxh - currh) / DDSPEED));
  }else{
    dist = (Math.round(currh / DDSPEED));
  }
  if(dist <= 1 && d == 1){
    dist = 1;
  }
  c.style.height = currh + (dist * d) + 'px';
  c.style.opacity = currh / c.maxh;
  c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
  if((currh < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1)){
    clearInterval(c.timer);
  }
}
/*----------------------------------------------------------------------*/
/* pagetopスライドスクロール効果 */
/*----------------------------------------------------------------------*/
function backToTop() {
  var x1 = x2 = x3 = 0;
  var y1 = y2 = y3 = 0;
  if (document.documentElement) {
      x1 = document.documentElement.scrollLeft || 0;
      y1 = document.documentElement.scrollTop || 0;
  }
  if (document.body) {
      x2 = document.body.scrollLeft || 0;
      y2 = document.body.scrollTop || 0;
  }
  x3 = window.scrollX || 0;
  y3 = window.scrollY || 0;
  var x = Math.max(x1, Math.max(x2, x3));
  var y = Math.max(y1, Math.max(y2, y3));
  window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
  if (x > 0 || y > 0) {
      window.setTimeout("backToTop()", 25);
  }
}
/*----------------------------------------------------------------------*/
/* 新規別ウインドウ */
/*----------------------------------------------------------------------*/
function newWin(url,winname,width,height) {
	 var argument = "resizable=yes,menubar=no, toolbar=no, scrollbars=yes, left=0, top=0";
		argument += ", width="+ width;
		argument += ", height="+ height;
  window.open(url,winname,argument);
}
/*----------------------------------------------------------------------*/
/* CLOSE処理 */
/*----------------------------------------------------------------------*/
function closeWin() {
	 self.close();
}

/*----------------------------------------------------------------------*/
/* クラス名によるエレメントノード配列取得 */
/*----------------------------------------------------------------------*/
function getElementsByClassName(name){
  var elements = [];
		var allElements = document.getElementsByTagName('*');
		for (var i=0, len=allElements.length; i<len; i++){
		  if (allElements[i].className == name){
				  elements.push(allElements[i]);
				}
		}
		return elements;
}
/*----------------------------------------------------------------------*/
/* 画像のプリロード */
/*----------------------------------------------------------------------*/
preloadedImages = [];
function preloadImage(url){
         var p = preloadedImages;
									var l = p.length;
									p[l]  = new Image();
									p[l].src = url;
}