/* ****************************************************************** 

	COPYRIGHT(C) CYBRiDGE CORPORATION.
	URL: http://www.cybridge.jp/

****************************************************************** */


//Open blank window
window.onload = function() {
	
	//class blankで新しいウィンドウ
	var node_a = document.getElementsByTagName('a');
	for (var i in node_a) {
		if (node_a[i].className == 'blank') {
			node_a[i].onclick = function() {
			window.open(this.href, '', '');
			return false;
			};
		};
	};
	
	//ページスクロール
	tinyScrolling.init();
};


var tinyScrolling = {
	speed : 25,      //set here the scroll speed: when this value increase, the speed decrease. 
	maxStep: 150,	 //set here the "uniform motion" step for long distances
	brakeK: 3,		 //set here the coefficient of slowing down
	hash:null,		
	currentBlock:null,
	requestedY:0,
	init: function() {
			var lnks = document.getElementsByTagName('a');   
			for(var i = 0, lnk; lnk = lnks[i]; i++) {   
				if ((lnk.href && lnk.href.indexOf('#') != -1) &&  ( (lnk.pathname == location.pathname) ||
				('/'+lnk.pathname == location.pathname) ) && (lnk.search == location.search)) {  
				lnk.onclick = tinyScrolling.initScroll;   		
				}   
			}
	},
	getElementYpos: function(el){
			var y = 0;
			while(el.offsetParent){  
				y += el.offsetTop    
				el = el.offsetParent;
			}	return y;
	},		
	getScrollTop: function(){
			if(document.all) return (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
			else return window.pageYOffset;   
	},	
	getWindowHeight: function(){
			if (window.innerHeight)	return window.innerHeight;
			if(document.documentElement && document.documentElement.clientHeight) return document.documentElement.clientHeight;
	},
	getDocumentHeight: function(){
			if (document.height) return document.height;
			if(document.body.offsetHeight) return document.body.offsetHeight;
	},
	initScroll: function(e){
			var targ;  
			if (!e) var e = window.event;
			if (e.target) targ = e.target;
			else if (e.srcElement) targ = e.srcElement;   
			tinyScrolling.hash = targ.href.substr(targ.href.indexOf('#')+1,targ.href.length); 
			tinyScrolling.currentBlock = document.getElementById(tinyScrolling.hash);   
			if(!tinyScrolling.currentBlock) return;
			tinyScrolling.requestedY = tinyScrolling.getElementYpos(tinyScrolling.currentBlock); 
			tinyScrolling.scroll();  
			return false;
	},
	scroll: function(){
			var top  = tinyScrolling.getScrollTop();
			if(tinyScrolling.requestedY > top) {  
				var endDistance = Math.round((tinyScrolling.getDocumentHeight() - (top + tinyScrolling.getWindowHeight())) / tinyScrolling.brakeK);
				endDistance = Math.min(Math.round((tinyScrolling.requestedY-top)/ tinyScrolling.brakeK), endDistance);
				var offset = Math.max(2, Math.min(endDistance, tinyScrolling.maxStep));
			} else { var offset = - Math.min(Math.abs(Math.round((tinyScrolling.requestedY-top)/ tinyScrolling.brakeK)), tinyScrolling.maxStep);
			} window.scrollTo(0, top + offset);  
			if(Math.abs(top-tinyScrolling.requestedY) <= 1 || tinyScrolling.getScrollTop() == top) {
				window.scrollTo(0, tinyScrolling.requestedY);
				if(!document.all || window.opera) location.hash = tinyScrolling.hash;
				tinyScrolling.hash = null;
			} else 	setTimeout(tinyScrolling.scroll,tinyScrolling.speed);
	}		
}




//labelタグ内の画像クリック可能（ie6ie7）
function clickInput(label){
        //forの指すidのinputタグがあるか探す
        var e = null;
        try{
                e = document.getElementById(label.htmlFor);
        }
        catch(exception){}
        if(e == null){
                //labelタグ以下のinputタグを探す
                var node;
                for(var i=0; i<label.childNodes.length; i++){
                        node = label.childNodes.item(i);
                        if(node.nodeName == 'INPUT'){
                                e = node;
                                break;
                        }
                }
        }
        if(e != null){
                //inputタグにクリックされたときと同じ動作をさせる
                switch(e.type){
                        case 'checkbox':
                                e.checked =! e.checked;
                                return false;
                        case 'radio':
                                e.checked = true;
                                return false;
                        case 'text': case 'password': case 'textarea':
                                e.focus();
                                return false;
                }
        }
}



//要素の開閉
var is_closed = [];
function open_close( id ) {
	if (is_closed[id]) {
		document.getElementById( id ).style.display = 'none';
		is_closed[id] = false;
	}else{
		document.getElementById( id ).style.display = 'block';
		is_closed[id] = true;
	}
}