/* common.js
========================================================
URLを確認

 * yuga.js
----------------------------------------------- 
 *
 * yuga.js 0.3.0
 * Copyright (c) 2007 Kyosuke Nakamura (kyosuke.jp)
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 *
----------------------------------------------- */


/* common.js内で使っているfunction群 */
var common = {
	// imageのプリローダー
	preloader: {
		loadedImages: [],
		load: function (url){
			var img = this.loadedImages;
			var l = img.length;
			img[l] = new Image();
			img[l].src = url;
		}
	},
	// URIを解析したオブジェクトを返すfunction
	URI: function(s){
		this.originalPath = s;
		
		//絶対パスを取得
		this.getAbsolutePath = function(path){
			var img = new Image();
			img.src = path;
			path = img.src;
			img.src = '#';
			return path;
		};
	
		this.absolutePath = this.getAbsolutePath(s);
	
		//同じ文書にリンクしているかどうか
		this.isSelfLink = (this.absolutePath == location.href);
	
		//絶対パスを分解
		var a = this.absolutePath.split('://');
		this.schema = a[0];
		var d = a[1].split('/');
		this.host = d.shift();
		var f = d.pop();
		this.dirs = d;
		this.file = f.split('?')[0].split('#')[0];
		var fn = this.file.split('.');
		this.fileExtension = (fn.length == 1) ? '' : fn.pop();
		this.fileName = fn.join('.');
		var fq = f.split('?');
		this.query = (fq[1]) ? fq[1].split('#')[0] : '';
		var ff = f.split('#');
		this.fragment = (ff[1]) ? ff[1].split('?')[0] : '';	
	}
};

$(function(){
	
	//class="notover"と、エントリ本文中の画像以外はロールオーバーを設定（src属性を_on付きのものに差し替える）
	$('a img.over').each(function(){
		this.originalSrc = $(this).attr('src');
		this.rolloverSrc = this.originalSrc.replace(/(\.gif|\.jpg|\.png)/, "_on$1");
		common.preloader.load(this.rolloverSrc);
	}).hover(function(){
		$(this).attr('src',this.rolloverSrc);
	},function(){
		$(this).attr('src',this.originalSrc);
	});

	//現在のページへのリンク （src属性を_on付きのものに差し替える）
	/*$('a[@href]').each(function(){
		var href = new common.URI(this.getAttribute('href'));
		if (href.isSelfLink && !href.fragment) {
			$(this).addClass('current');
			//img要素が含まれていたら現在用画像（_cr）に設定
			$(this).find('img').each(function(){
				//ロールオーバーが設定されていたら削除
				$(this).unbind('mouseover');
				$(this).unbind('mouseout');
				this.currentSrc = this.getAttribute('src').replace(/(\.gif|\.jpg|\.png)/, "_on$1");
				$(this).attr('src',this.currentSrc);
			});
		}
	});*/

	// target属性を使わずに外部リンクを別ウィンドウ表示 MovableType対応版
$(document).ready( function () {
	$('a[@href^="http"]').not('[@href^="http://www.y-newwave.com/"]').click(function(){
	window.open(this.href, '');
	return false;
	});
	$('a[@href^="http"]').not('[@href^="http://www.y-newwave.com/"]').addClass("exLink");
});


/* //画像へ直リンクするとthickboxで表示(thickbox.js利用)
	tb_init('a[@href$=".jpg"], a[@href$=".gif"], a[@href$=".png"]'); */

	//奇数、偶数を自動追加
	$('ul').each(function(){
		$(this).find('li:odd').addClass('even');
		$(this).find('li:even').addClass('odd');
	});
	$('table').each(function(){
		$(this).find('tr:odd').addClass('even');
		$(this).find('tr:even').addClass('odd');
	});
	
	//:first-child, :last-childをクラスとして追加
	$(':first-child').addClass('firstChild');
	$(':last-child').addClass('lastChild');
	
	//css3の:emptyをクラスとして追加
	$(':empty').addClass('empty');


});











/* Smooth scrolling
   Changes links that link to other parts of this page to scroll
   smoothly to those links rather than jump to them directly, which
   can be a little disorienting.
   
   sil, http://www.kryogenix.org/
   
   v1.0 2003-11-11
   v1.1 2005-06-16 wrap it up in an object
*/

var ss = {
  fixAllLinks: function() {
    // Get a list of all links in the page
    var allLinks = document.getElementsByTagName('a');
    // Walk through the list
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if ((lnk.href && lnk.href.indexOf('#') != -1) && 
          ( (lnk.pathname == location.pathname) ||
	    ('/'+lnk.pathname == location.pathname) ) && 
          (lnk.search == location.search)) {
        // If the link is internal to the page (begins in #)
        // then attach the smoothScroll function as an onclick
        // event handler
        ss.addEvent(lnk,'click',ss.smoothScroll);
      }
    }
  },

  smoothScroll: function(e) {
    // This is an event handler; get the clicked on element,
    // in a cross-browser fashion
    if (window.event) {
      target = window.event.srcElement;
    } else if (e) {
      target = e.target;
    } else return;

    // Make sure that the target is an element, not a text node
    // within an element
    if (target.nodeName.toLowerCase() != 'a') {
      target = target.parentNode;
    }
  
    // Paranoia; check this is an A tag
    if (target.nodeName.toLowerCase() != 'a') return;
  
    // Find the <a name> tag corresponding to this href
    // First strip off the hash (first character)
    anchor = target.hash.substr(1);
    // Now loop all A tags until we find one with that name
    var allLinks = document.getElementsByTagName('a');
    var destinationLink = null;
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if (lnk.name && (lnk.name == anchor)) {
        destinationLink = lnk;
        break;
      }
    }
    if (!destinationLink) destinationLink = document.getElementById(anchor);

    // If we didn't find a destination, give up and let the browser do
    // its thing
    if (!destinationLink) return true;
  
    // Find the destination's position
    var destx = destinationLink.offsetLeft; 
    var desty = destinationLink.offsetTop;
    var thisNode = destinationLink;
    while (thisNode.offsetParent && 
          (thisNode.offsetParent != document.body)) {
      thisNode = thisNode.offsetParent;
      destx += thisNode.offsetLeft;
      desty += thisNode.offsetTop;
    }
  
    // Stop any current scrolling
    clearInterval(ss.INTERVAL);
  
    cypos = ss.getCurrentYPos();
  
    ss_stepsize = parseInt((desty-cypos)/ss.STEPS);
    ss.INTERVAL =
setInterval('ss.scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);
  
    // And stop the actual click happening
    if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.preventDefault && e.stopPropagation) {
      e.preventDefault();
      e.stopPropagation();
    }
  },

  scrollWindow: function(scramount,dest,anchor) {
    wascypos = ss.getCurrentYPos();
    isAbove = (wascypos < dest);
    window.scrollTo(0,wascypos + scramount);
    iscypos = ss.getCurrentYPos();
    isAboveNow = (iscypos < dest);
    if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
      // if we've just scrolled past the destination, or
      // we haven't moved from the last scroll (i.e., we're at the
      // bottom of the page) then scroll exactly to the link
      window.scrollTo(0,dest);
      // cancel the repeating timer
      clearInterval(ss.INTERVAL);
      // and jump to the link directly so the URL's right
      location.hash = anchor;
    }
  },

  getCurrentYPos: function() {
    if (document.body && document.body.scrollTop)
      return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
      return document.documentElement.scrollTop;
    if (window.pageYOffset)
      return window.pageYOffset;
    return 0;
  },

  addEvent: function(elm, evType, fn, useCapture) {
    // addEvent and removeEvent
    // cross-browser event handling for IE5+,  NS6 and Mozilla
    // By Scott Andrew
    if (elm.addEventListener){
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent){
      var r = elm.attachEvent("on"+evType, fn);
      return r;
    } else {
      alert("Handler could not be removed");
    }
  } 
}

ss.STEPS = 25;

ss.addEvent(window,"load",ss.fixAllLinks);