//文本框得到与失去焦点
function cleartxt(id,txt) {
	if (document.getelementbyid(id).value == txt)
		document.getelementbyid(id).value="" ;
	return ;
}
function filltxt(id,txt) {
	if ( document.getelementbyid(id).value == "" )
		document.getelementbyid(id).value=txt;
	return ;
}

//焦点图片轮换
function $(id) { return document.getelementbyid(id); }

function addloadevent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function(){
			oldonload();
			func();
		}
	}
}

function addbtn() {
	if(!$('focus_turn')||!$('focus_pic')||!$('focus_tx')) return;
	var focuslist = $('focus_pic').getelementsbytagname('li');
	if(!focuslist||focuslist.length==0) return;
	var btnbox = document.createelement('div');
	btnbox.setattribute('id','focus_btn');
	var spanbox ='';
	for(var i=1; i<=focuslist.length; i++ ) {
		var spanlist = '<span class="normal">'+i+'</span>';
		spanbox += spanlist;
	}
	btnbox.innerhtml = spanbox;
	$('focus_turn').appendchild(btnbox);
	$('focus_btn').getelementsbytagname('span')[0].classname = 'current';
}

function classnormal(){
	var focuslist = $('focus_pic').getelementsbytagname('li');
	var btnlist = $('focus_btn').getelementsbytagname('span');
	var txlist = $('focus_tx').getelementsbytagname('li');
	for(var i=0; i<focuslist.length; i++) {
		focuslist[i].classname='normal';
		btnlist[i].classname='normal';
		txlist[i].classname='normal';
	}
}

function classcurrent(n){
	var focuslist = $('focus_pic').getelementsbytagname('li');
	var btnlist = $('focus_btn').getelementsbytagname('span');
	var txlist = $('focus_tx').getelementsbytagname('li');
	focuslist[n].classname='current';
	btnlist[n].classname='current';
	txlist[n].classname='current';
}

var autokey = false;
function btnturn() {
	if(!$('focus_turn')||!$('focus_pic')||!$('focus_tx') || !$('focus_btn')) return;
	$('focus_turn').onmouseover = function(){autokey = true};
	$('focus_turn').onmouseout = function(){autokey = false};	
	var focuslist = $('focus_pic').getelementsbytagname('li');
	var btnlist = $('focus_btn').getelementsbytagname('span');
	var txlist = $('focus_tx').getelementsbytagname('li');
	for (var m=0; m<btnlist.length; m++){
		btnlist[m].onmouseover = function() {
			classnormal();
			this.classname='current';
			var n=this.childnodes[0].nodevalue-1;
			focuslist[n].classname='current';
			txlist[n].classname='current';
		}
	}
}

addloadevent(addbtn);
addloadevent(btnturn);
addloadevent(setautoturn);

function setautoturn() {
	setinterval('autoturn()', 5000);
}

function autoturn() {
	if(!$('focus_turn')||!$('focus_pic')||!$('focus_tx')) return;
	if (autokey) return;
	var focuslist = $('focus_pic').getelementsbytagname('li');
	var btnlist = $('focus_btn').getelementsbytagname('span');
	var txlist = $('focus_tx').getelementsbytagname('li');
	for(var i=0; i<focuslist.length; i++) {
		if (focuslist[i].classname == 'current') {
			var currentnum = i;
		}
	}
	if (currentnum==focuslist.length-1 ){
		classnormal();
		classcurrent(0);
	} else {
		classnormal();
		classcurrent(currentnum+1);
	}

}

//相册焦点图片切换
function imagefocus(){
	if(!$('image_focus')||!$('image_focus_big')||!$('image_focus_small')) return;
	var imagesmalllists= $('image_focus_small').getelementsbytagname('li');
	var imagebiglists= $('image_focus_big').getelementsbytagname('li');
	for(var i=0; i<imagesmalllists.length; i++){
		imagesmalllists[i].setattribute('nodeno',i);
	}
	for(var i=0; i<imagesmalllists.length; i++){
		imagesmalllists[i].onmouseover= function() {
			var n= this.getattribute('nodeno');
			for(var m=0; m<imagebiglists.length; m++){
				imagebiglists[m].classname='';	
			}
			imagebiglists[n].classname='current';		
		}
	}
}
addloadevent(imagefocus);

//搜索
function searchbox(){
	if(!$('more_search')||!$('search_box')) return;
	$('more_search').onclick=function(){
		$('search_box').classname= '';
		$('more_search').style.display='none';
		$('close_search').style.display='block';
	}
	
	$('close_search').onclick=function(){
		$('search_box').classname= 'fixoneline';
		$('more_search').style.display='block';
		$('close_search').style.display='none';
	}

}
addloadevent(searchbox);

function addseccode() {
	
	if(noseccode != 0) return;
	
	$('login_authcode_input').style.display = 'block';
	if($('login_authcode_img').style.display == 'block') {
		$('login_authcode_img').style.display='none';
	} 
	$('login_showclose').style.display = 'block';
	$('user_login_position').classname = 'current';
}

function showseccode() {
	$('login_authcode_img').style.display='block';
	updateseccode();
}

function hidesec() {
	$('login_authcode_input').style.display = 'none';
	$('login_showclose').style.display = 'none';
	$('login_authcode_img').style.display = 'none';
	$('user_login_position').classname = '';
}