/*
2008/11/1 簡略化
*/

function imgChange(i,j) {
	document.images[i].src = j;
}
function imageChange(obj) {
	baseURL = obj.src;
	filePath = obj.src.slice(0,-4);
	fileExt = obj.src.slice(-4);
	rolloverURL = filePath + '_o' + fileExt;
	obj.src = rolloverURL;
	obj.onmouseout = function() {obj.src = baseURL};
	obj.onclick = function() {obj.src = baseURL};
}

function slidePage(point) {
  start=getWinYOffset();
  difference=point-start;
  tmp=difference;
  k = 0.90;
  move()
}

function move() {
  if (Math.abs(tmp)>0.5) {
    tmp=tmp*k;
    window.scroll(0,start+(difference-tmp));
    setTimeout("move()",0)
  } else {
    window.scroll(0,difference+start)
  }
}

function openerHrefChange(href) {
	if (opener) {
		opener.top.location.href = href;
		opener.focus();
	} else {
		w = window.open(href,'uroko');
		w.focus();
	}
}


/*
http://www2.ocn.ne.jp/~yoochan/decoration/JavaScript/library_dom.htm
クロスブラウザ実現のための基本関数群（DOMブラウザ対応）より
*/

function getWindowHeight(){
  if(window.innerHeight) return window.innerHeight; // Mozilla, Opera, NN4
  if(document.documentElement && document.documentElement.clientHeight){ // 以下 IE
   return document.documentElement.clientHeight;
  }
  else if(document.body && document.body.clientHeight){
   return document.body.clientHeight;
  }
  return 0;
}

function getWinYOffset(){
  if(window.scrollY) return window.scrollY; // Mozilla
  if(window.pageYOffset) return window.pageYOffset; // Opera, NN4
  if(document.documentElement && document.documentElement.scrollTop){ // 以下 IE
   return document.documentElement.scrollTop;
  }
  else if(document.body && document.body.scrollTop){
   return document.body.scrollTop;
  }
  return 0;
}