/*
	--------------------------------
	Created: 2007.11.09
	Last Modified: 2007.11.09
	--------------------------------
	- Table of Contents -

	MM_Behavior
		- MM_preloadImages()
			event handler : onload="MM_preloadImages('path'[,'path']*)"
		- MM_swapImgRestore()
		- MM_findObj()
		- MM_swapImage()
			event handler : onmouseover="MM_swapImage('id','','path'[,'id','','path']*,1)" onmouseout="MM_swapImgRestore()"

	Configurations

	Site Search

	Rollover

	Mitsubishi
	--------------------------------
*/



/* --------------------------------
	MM_Behavior
-------------------------------- */

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}



/* --------------------------------
	Configurations
-------------------------------- */

var mitsubishi = new Mitsubishi();

mitsubishi.addEvent(window, 'load', function() {new SiteSearch().init('seek', 'phrase');}, false);
mitsubishi.addEvent(window, 'load', rollover, false);



/* --------------------------------
	Site Search
-------------------------------- */

function SiteSearch() {
	// 初期化
	this.init = function(form, input) {
		if(typeof form == 'string') form = document.getElementById(form);
		if(typeof input == 'string') input = document.getElementById(input);
		if(form && input){
			var self = this;
			form.onsubmit = function() {self.submit(form, input); return false;}
			mitsubishi.addEvent(input, 'focus', function() {self.clear(input);}, false);
			mitsubishi.addEvent(input, 'blur', function() {self.reset(input);}, false);
		}
	}

	// 文字色
	this.textColor = {
		blur: '#727272',
		focus: '#444'
	}

	// クリア
	this.clear = function(elem) {
		if(elem.value == elem.defaultValue) {
			elem.style.color = this.textColor.focus;
			elem.value = '';
		}
	}

	// リセット
	this.reset = function(elem) {
		if(elem.value == '') {
			elem.style.color = this.textColor.blur;
			elem.value = elem.defaultValue;
		}
	}

	// 送信
	this.submit = function(form, input) {
		if(input.value == '' || input.value == input.defaultValue) {
			alert('検索内容を入力してください');
		} else {
			form.submit();
		}
	}
}



/* --------------------------------
	Rollover
-------------------------------- */

function rollover() {
	var elems = mitsubishi.getElementsByClassName('rollover', document.body, 'img');
	elems = elems.concat(mitsubishi.getElementsByClassName('rollover', document.body, 'input'));
	for(var i = 0, l = elems.length; i < l; i++) {
		var elem = elems[i];

		// プレロード
		var temp = new Image();
		elem.src.match(/(\.gif|\.jpg|\.png)$/);
		temp.src = elem.src.replace(RegExp.$1, '_ov' + RegExp.$1);

		// スワップ
		elem.onmouseover = function() {
			this.src.match(/(\.gif|\.jpg|\.png)$/);
			this.src = this.src.replace(RegExp.$1, '_ov' + RegExp.$1);
		}

		// レストア
		elem.onmouseout = function() {
			this.src.match(/(\.gif|\.jpg|\.png)$/);
			this.src = this.src.replace('_ov' + RegExp.$1, RegExp.$1);
		}
	}
}



/* --------------------------------
	Mitsubishi
-------------------------------- */

function Mitsubishi() {
	// クラス名をもとに要素を取得
	this.getElementsByClassName = function(className, parent, tagName) {
		if(parent && typeof parent == 'string') parent = document.getElementById(parent);
		if(!parent) parent = document;
		if(!tagName) tagName = '*';
		var elems = [];
		var collection = parent.getElementsByTagName(tagName);
		if(tagName == '*' && !collection.length && parent.all) collection = parent.all;// Win IE 5.x
		var pattern = new RegExp('(^|\\s)' + className + '(\\s|$)');
		for(var i = 0, l = collection.length; i < l; i++) {
			if(collection[i].className.match(pattern)) elems.push(collection[i]);
		}
		return elems;
	}

	// イベントの追加
	this.addEvent = function(elem, ev, func, capt) {
		if(elem.addEventListener) {// FF, SF, OP, NS
			elem.addEventListener(ev, func, capt);
			return true;
		} else if(elem.attachEvent) {// Win IE
			return elem.attachEvent('on' + ev, func);
		} else {// Mac IE
			var temp = elem['on' + ev];
			if(typeof elem['on' + ev] != 'function') {
				elem['on' + ev] = function(e) { func(e); }
			} else {
				elem['on' + ev] = function(e) {
					temp(e);
					func(e);
				}
			}
		}
	}
}