/* 幻灯片 */
function ImgSlide(menu){
	var act = 0, isAuto = true;
	menu = menu[menu.length - 1];
	menu.onmouseover = function(){ isAuto = false; }
	menu.onmouseout = function(){ isAuto = true; }
	menu = menu.getElementsByTagName("li");
	function NextPage(x){
		if(x >= menu.length) x = 0;
		menu[act].className = "";
		menu[x].className = "act";
		act = x;
	}
	for(var i = 0; i < menu.length; (function(x){
		menu[x].onmouseover = function(){ NextPage(x); }
	})(i++));
	setInterval(function(){
		if(!isAuto) return;
		NextPage(act + 1);
	}, 4567);
}
/* 牛师团滚动 */
function AniNST(table){
	var nmbW = 180 + 30, nmbMove = 15, isAuto = true;
	table = table[table.length - 1];
	var box = table.parentNode;
	var nst = box.parentNode;
	var btn = nst.getElementsByTagName("img");
	nst.onmouseover = function(){ isAuto = false; }
	nst.onmouseout = function(){ isAuto = true; }
	btn[0].onclick = function(){ Move(-1, nmbW * 2); }
	btn[btn.length - 1].onclick = function(){ Move(1, nmbW * 2); }
	var tr = table.rows[0];
	var nmbCnt = tr.cells.length, maxW = nmbW * nmbCnt;
	for(var i = 0; i < nmbCnt; i++) tr.appendChild(tr.cells[i].cloneNode(true));
	/* 缓动 */
	function Move(dir, offset){
		if(!offset) return;
		var curScr = box.scrollLeft;
		// 当前可移动量
		var curMov = nmbMove < offset ? nmbMove : offset;
		curScr += curMov * dir;
		if(curScr < 0) curScr += maxW;
		if(curScr > maxW) curScr -= maxW;
		box.scrollLeft = curScr;
		setTimeout(function(){ Move(dir, offset - curMov); }, 15);
	}
	// 自动播放
	setInterval(function(){
		if(!isAuto) return;
		Move(1, nmbW * 2);
	}, 4567);
}
/* 题库搜索交互 */
function FormTKSS(form){
	var strV = "1|2|3|8|10|11|315|316|317|318|319|320|321|322|323|324|325|326|327|328|329|330|331|332|333|334|335|336|337|338|339|348|349";
	var strT = "国家|北京|湖南|河南|上海|天津|辽宁|黑龙江|吉林|内蒙古|新疆|青海|西藏|甘肃|宁夏|陕西|山西|河北|山东|江苏|安徽|湖北|四川|云南|贵州|江西|浙江|福建|广东|广西|海南|重庆|全国";
	form = form[form.length - 1];
	var slt = form.getElementsByTagName("select");
	var arrV = strV.split("|");
	var arrT = strT.split("|");
	var arrO = slt[1].options;
	for(var i = 0; i < arrV.length; i++){
		slt[1].options[i + 1] = new Option(arrT[i], arrV[i]);
	}
	var http = self.XMLHttpRequest ? new XMLHttpRequest
		: new ActiveXObject("Microsoft.XMLHttp");
	slt[0].onchange = slt[1].onchange = function(){
		slt[3].options.length = 1;
		if(!slt[0].value || !slt[1].value) return;
		http.open("GET", "/plus/getlist.php?gettype=" + slt[0].value + "&postcity=" + slt[1].value, true);
		http.onreadystatechange = function(){
			if(http.readyState < 4) return;
			var code = http.responseText;
			if(!code) return
			eval(code);
			var arrV = sonsv.split("|"), arrT = sons.split("|");
			slt[3].options.length = 1;
			for(var i = 0; i < arrV.length; i++){
				slt[3].options[i + 1] = new Option(arrT[i], arrV[i]);
			}
		}
		http.send();
	}
}
/* Tab自动切换 */
function SetTab(){
	var actIdx = 0, isAuto = true;
	var dl = document.getElementsByTagName("dl");
	var box = dl[dl.length - 1].parentNode;
	box.onmouseover = function(){ isAuto = false; }
	box.onmouseout = function(){ isAuto = true; }
	var dt = box.getElementsByTagName("dt");
	for(var i = 0; i < dt.length; (function(x){
		dt[x].onmouseover = function(){ setAct(x); }
	})(i++));
	// 设置激活项
	function setAct(x){
		dt[actIdx].parentNode.className = "";
		dt[x].parentNode.className = "act";
		actIdx = x;
	}
	// 自动播放
	setInterval(function(){
		if(!isAuto) return;
		var x = actIdx + 1;
		if(x >= dt.length) x = 0;
		setAct(x);
	}, 4567);
}
/* 图书自动滚动 */
function AniBook(table){
	table = table[table.length - 1];
	var tr = table.rows[0];
	var cnt = tr.cells.length;
	var itemW = 165, mount = 10, dur = 12;
	var maxW = 165 * cnt;
	for(var i = 0; i < cnt; i++) tr.appendChild(tr.cells[i].cloneNode(true));
	var book = table.parentNode;
	function Move(ofs){
		if(ofs < 1) return;
		// 本桢移动量
		var move = ofs > mount ? mount : ofs;
		setTimeout(function(){ Move(ofs - move); }, dur);
		var left = book.scrollLeft + move;
		if(left > maxW) left -= maxW;
		book.scrollLeft = left;
	}
	setInterval(function(){ Move(itemW); }, 4567);
}