// JavaScript Document
// <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />


//class="bl" to NewWindow
window.onload = function() {
	var node_a = document.getElementsByTagName('a');
	for (var i in node_a) {
		if (node_a[i].className == 'bl') {
			node_a[i].onclick = function() {
				window.open(this.href, '', '');
				return false;
			};
		}
	}
	var node_a = document.getElementsByTagName('area');
	for (var i in node_a) {
		if (node_a[i].className == 'bl') {
			node_a[i].onclick = function() {
				window.open(this.href, '', '');
				return false;
			};
		}
	}
};


// Page Ancor Link Smooth Scroll
(function(){
	var easing = 0.25;
	var interval = 20;
	var d = document;
	var targetX = 0;
	var targetY = 0;
	var targetHash = '';
	var scrolling = false;
	var splitHref = location.href.split('#');
	var currentHref_WOHash = splitHref[0];
	var incomingHash = splitHref[1];
	var prevX = null;
	var prevY = null;
	
	addEvent(window, 'load', init);
	
	function init(){
		setOnClickHandler();
		if(incomingHash){
			if(window.attachEvent && !window.opera){
				setTimeout(function(){scrollTo(0,0);setScroll('#'+incomingHash);},50);
			}else{
				scrollTo(0, 0);
				setScroll('#'+incomingHash);
			}
		}
	}
	
	function addEvent(eventTarget, eventName, func){
		if(eventTarget.addEventListener){
			eventTarget.addEventListener(eventName, func, false);
		}else if(window.attachEvent){
			eventTarget.attachEvent('on'+eventName, function(){func.apply(eventTarget);});
		}
	}
	
	function setOnClickHandler(){
		var links = d.links;
		for(var i=0; i<links.length; i++){
			var link = links[i];
			var splitLinkHref = link.href.split('#');
			if(currentHref_WOHash == splitLinkHref[0] && d.getElementById(splitLinkHref[1])){
				addEvent(link, 'click', startScroll);
			}
		}
	}
	
	function startScroll(event){
		if(event){
			event.preventDefault();
		}else if(window.event){
			window.event.returnValue = false;
		}
			setScroll(this.hash);
	}
	
	function setScroll(hash){
		var targetEle = d.getElementById(hash.substr(1));
		if(!targetEle)return;
		var ele = targetEle;
		var x = 0;
		var y = 0;
		while(ele){
			x += ele.offsetLeft;
			y += ele.offsetTop;
			ele = ele.offsetParent;
		}
		var maxScroll = getScrollMaxXY();
		targetX = Math.min(x, maxScroll.x);
		targetY = Math.min(y, maxScroll.y);
		targetHash = hash;
		if(!scrolling){
			scrolling = true;
			scroll();
		}
	}
	
	function scroll(){
		var currentX = d.documentElement.scrollLeft||d.body.scrollLeft;
		var currentY = d.documentElement.scrollTop||d.body.scrollTop;
		var vx = (targetX - currentX) * easing;
		var vy = (targetY - currentY) * easing;
		var nextX = currentX + vx;
		var nextY = currentY + vy;
		if((Math.abs(vx) < 1 && Math.abs(vy) < 1)||(prevX === currentX && prevY === currentY)){
			scrollTo(targetX, targetY);
			scrolling = false;
			location.hash = targetHash;
			prevX = prevY = null;
			return;
		}else{
			scrollTo(parseInt(nextX), parseInt(nextY));
			prevX = currentX;
			prevY = currentY;
			setTimeout(function(){scroll()},interval);
		}
	}
	
	function getDocumentSize(){
		return {width:Math.max(document.body.scrollWidth, document.documentElement.scrollWidth), height:Math.max(document.body.scrollHeight, document.documentElement.scrollHeight)};
	}
	
	function getWindowSize(){
		var result = {};
		if(window.innerWidth){
			var box = d.createElement('div');
			with(box.style){
				position = 'absolute';
				top = '0px';
				left = '0px';
				width = '100%';
				height = '100%';
				margin = '0px';
				padding = '0px';
				border = 'none';
				visibility = 'hidden';
			}
			d.body.appendChild(box);
			var width = box.offsetWidth;
			var height = box.offsetHeight;
			d.body.removeChild(box);
			result = {width:width, height:height};
		}else{
			result = {width:d.documentElement.clientWidth || d.body.clientWidth, height:d.documentElement.clientHeight || d.body.clientHeight};
		}
		return result;
	}
	
	function getScrollMaxXY() {
		if(window.scrollMaxX && window.scrollMaxY){
			return {x:window.scrollMaxX, y:window.scrollMaxY};
		}
	var documentSize = getDocumentSize();
	var windowSize = getWindowSize();
	return {x:documentSize.width - windowSize.width, y:documentSize.height - windowSize.height};
	}
	
}());