// Document Js

var ldd = {};

ldd.tool = {};

ldd.tool.getByClass = function (oParent, sClass) {
	if (oParent.getElementsByClassName) {
		return oParent.getElementsByClassName(sClass);
	} else {
		var aEle = oParent.getElementsByTagName('*');
		var re = new RegExp('(^|\\s)' + sClass + '($|\\s)', 'i');
		var aRes = [];
		for(var i = 0; i < aEle.length; i++){
		    if(re.test(aEle[i].className)){
		        aRes.push(aEle[i]);
		    }
		}
		return aRes;
	}
};

ldd.tool.getStyle = function (obj, attr) {
	if (obj.currentStyle) {
		return obj.currentStyle[attr];
	} else {
		return getComputedStyle(obj, false)[attr];
	}
};

ldd.ui = {};

ldd.ui.move = function(obj,json,endFn) {
	clearInterval(obj.timer);
	obj.timer = setInterval(function(){
		var bBtn = true;
		for(var attr in json){
			var iCur = 0;
			if(attr == 'opacity'){
				if(Math.round(parseFloat(ldd.tool.getStyle(obj,attr))*100)==0){
					iCur = Math.round(parseFloat(ldd.tool.getStyle(obj,attr))*100);
				}else{
					iCur = Math.round(parseFloat(ldd.tool.getStyle(obj,attr))*100) || 100;
				}
			}else{
				iCur = parseInt(ldd.tool.getStyle(obj,attr)) || 0;
			}
			
			var iSpeed = (json[attr] - iCur)/8;
			iSpeed = iSpeed >0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
			if(iCur!=json[attr]){
				bBtn = false;
			}
			if(attr == 'opacity'){
				obj.style.filter = 'alpha(opacity=' +(iCur + iSpeed)+ ')';
				obj.style.opacity = (iCur + iSpeed)/100;	
			}else{
				obj.style[attr] = iCur + iSpeed + 'px';
			}
		}
		if(bBtn){
			clearInterval(obj.timer);
			if(endFn){
				endFn.call(obj);
			}
		}
	},30);
};

ldd.app = {};

ldd.app.noticePlay = function () {
	var oNotice = ldd.tool.getByClass(document,'notice')[0];
	var oUl = oNotice.getElementsByTagName('ul')[0];
	var aLi = oUl.getElementsByTagName('li');
	var iNow = 0;
	var timer = null;

	oUl.innerHTML += oUl.innerHTML;
	oUl.style.height = aLi.length * aLi[0].offsetHeight + 'px';

	timer = setInterval(autoPlay, 3000);

	oUl.onmouseover = function () {
		clearInterval(timer);
	};

	oUl.onmouseout = function () {
		timer = setInterval(autoPlay, 3000);
	};

	function autoPlay () {
		if (iNow == aLi.length/2) {
			iNow = 0;
			oUl.style.top = 0;
		}
		iNow++;
		ldd.ui.move(oUl, {top:-iNow * aLi[0].offsetHeight});
	}
};

ldd.app.searchTip = function () {
	var oSearch = ldd.tool.getByClass(document, 'search')[0];
	var oText = ldd.tool.getByClass(oSearch, 'sea_v')[0];
	var str = '关键词';

	oText.onfocus = function () {
		if (oText.value == str) {
			oText.value = '';
		}
	};

	oText.onblur = function () {
		if (oText.value == '') {
			oText.value = str;
		}
	};
};

ldd.app.bannerBtn = function () {
	var oWrap = ldd.tool.getByClass(document,'flexslider')[0];
	var oBtn = ldd.tool.getByClass(oWrap,'flex-direction-nav')[0];

	oWrap.onmouseover = function () {
		oBtn.style.display = 'block';
	};

	oWrap.onmouseout = function () {
		oBtn.style.display = 'none';
	};
};