// 等比缩放图片:<img onload="rs(this)" src=""/>
function rs(el){
//首先判断图片是长的还是宽的。如果是长的就对宽进行变形，否则对高进行变形
    (el.width>el.height+10)?el.width = math.min(120,el.width):el.height = math.min(110,el.height);
}

//div等高：放在</body>后resetdiv("id","id","id")
function resetdiv(){
	if(arguments.length > 1){
		var x = arguments.length;
		var elements=[];
		for(i=0;i<x;i++){
			elements.push(document.getelementbyid(arguments[i]).scrollheight);
		}
		var imax = elements[0];
		if(imax > elements[1]){
			document.getelementbyid(arguments[1]).style.height = imax+"px";
		}
		else
		{
			document.getelementbyid(arguments[0]).style.height = elements[1]+"px";
		}
	}
}

//显示时间
function time(){
<!--
// begin
 var enable=0; today=new date();
 var day; 
 var date;
 var time_start = new date();
 var clock_start = time_start.gettime();
 if(today.getday()==0)day="星期天"//sunday
 if(today.getday()==1)day="星期一"//monday
 if(today.getday()==2)day="星期二"//tuesday
 if(today.getday()==3)day="星期三"//wednesday
 if(today.getday()==4)day="星期四"//thursday
 if(today.getday()==5)day="星期五"//friday
 if(today.getday()==6)day="星期六"//saturday
 date="今天是："+(today.getyear())+"年"+(today.getmonth()+1)+"月"+today.getdate()+"日 ";
 //document.write(date);
// document.write(day+" ");
 document.getelementbyid("nowdiv").innerhtml = date; //div的html是now这个字符串 
 settimeout("time()",1000); //设置过1000毫秒就是1秒，调用show方法
 window.onload = time();
 //times=(today.gethours())+":"+(today.getminutes()+1)+":"+today.getseconds()+" ";
 //document.write(times);
// -->	
}

function timeshow(){
	var date = new date(); //日期对象
	if(date.getday()==0)day="星期天"//sunday
	 if(date.getday()==1)day="星期一"//monday
	 if(date.getday()==2)day="星期二"//tuesday
	 if(date.getday()==3)day="星期三"//wednesday
	 if(date.getday()==4)day="星期四"//thursday
	 if(date.getday()==5)day="星期五"//friday
	 if(date.getday()==6)day="星期六"//saturday

	var now = "今天是：";
	now = now + date.getfullyear()+"年"; //读英文就行了
	now = now + (date.getmonth()+1)+"月"; //取月的时候取的是当前月-1如果想取当前月+1就可以了
	now = now + date.getdate()+"日";
	now = now + " ";
	now = now + day;
//	now = now + date.gethours()+"时";
//	now = now + date.getminutes()+"分";
//	now = now + date.getseconds()+"秒";
	document.getelementbyid("nowdiv").innerhtml = now; //div的html是now这个字符串 
	settimeout("timeshow()",1000); //设置过1000毫秒就是1秒，调用show方法
	
	window.onload = timeshow;
}

function time_en(){
<!--
// begin
 var enable=0; today=new date();
 var day; 
 var date;
 var time_start = new date();
 var clock_start = time_start.gettime();
 if(today.getday()==0)day="sunday"//
 if(today.getday()==1)day="monday"//
 if(today.getday()==2)day="tuesday"//
 if(today.getday()==3)day="wednesday"//
 if(today.getday()==4)day="thursday"//
 if(today.getday()==5)day="friday"//
 if(today.getday()==6)day="saturday"//
 date="today："+(today.getyear())+"-"+(today.getmonth()+1)+"-"+today.getdate();
 document.write(date+" ");
 document.write(day);
 //times=(today.gethours())+":"+(today.getminutes()+1)+":"+today.getseconds()+" ";
 //document.write(times);
// -->	
}

//滚动
function divscroll(tabid,tab1id,tab2id,direction){
	var speed=25; //数字越大速度越慢
	var _stop = 0;
	var tab= document.getelementbyid(tabid);
	var tab1 = document.getelementbyid(tab1id);
	var tab2 = document.getelementbyid(tab2id);
	tab2.innerhtml=tab1.innerhtml;
	switch (direction)
	{
		case "up" :
			var mymar=setinterval(marqueeup,speed);   //定时滚动
			tab.onmouseover=function() {clearinterval(mymar)};
			tab.onmouseout=function() {mymar=setinterval(marqueeup,speed)};
			break;
		default:
			var mymar=setinterval(marqueeleft,speed);   //定时滚动
			tab.onmouseover=function() {clearinterval(mymar)};
			tab.onmouseout=function() {mymar=setinterval(marqueeleft,speed)};
			break;
		break;
	}
	/*向左滚动*/
	function marqueeleft(){
		if(tab1.offsetwidth-tab.scrollleft<=0)
			tab.scrollleft-=tab1.offsetwidth;
		else{
			tab.scrollleft++;
		}
	}
	/*向上滚动*/
	function marqueeup(){
 		if(tab2.offsettop-tab.scrolltop<=0)
  			tab.scrolltop-=tab1.offsetheight;
 		else{
  			tab.scrolltop++;
 		}
	}
}
//切换选项卡
function changetab(group,num,sel)
{
	for(var i=0;i<num;i++) {
		var obj = document.getelementbyid(group+i.tostring());
		if(i == sel) {
			obj.classname = "sel";
			document.getelementbyid(group+"content"+i.tostring()).style.display = "";
		}else {
			obj.classname = "";
			document.getelementbyid(group+"content"+i.tostring()).style.display = "none";
		}
	}
}

//搜索验证
function onsearch()
{
	var title = document.getelementbyid("title");
	if(title.value == "")
	{
		alert("标题不能为空!!");
		return false;
	}
	return true;
}

//浮动广告
var rimifon = { 
"ads" : new object, 
"newfloatad" : function(imgurl, strlink) 
{ 
    var ad = document.createelement("a"); 
    ad.dirv = true; 
    ad.dirh = true; 
    ad.automove = true; 
    ad.image = new image; 
    ad.seed = math.random(); 
    ad.timer = setinterval("rimifon.float(" + ad.seed + ")", 50); 
    this.ads[ad.seed] = ad; 
    ad.image.parent = ad; 
    ad.style.position = "absolute"; 
    ad.style.left = 0; 
    ad.style.top = 0; 
    ad.image.src = imgurl; 
    ad.image.onmouseover = function(){this.parent.automove = false;} 
    ad.image.onmouseout = function(){this.parent.automove = true;} 
    if(strlink) { 
        ad.href = strlink; 
        ad.image.border = 0; 
        ad.target = "_blank"; 
    } 
    ad.appendchild(ad.image); 
    document.body.appendchild(ad); 
    return ad; 
}, 
"float" : function(floatid) { 
    var ad = this.ads[floatid]; 
    if(ad.automove) { 
        var curleft = parseint(ad.style.left); 
        var curtop = parseint(ad.style.top); 
        if(ad.offsetwidth + curleft > document.body.clientwidth + document.body.scrollleft - 1) { 
            curleft = document.body.scrollleft + document.body.clientwidth - ad.offsetwidth; 
            ad.dirh = false; 
        } 
        if(ad.offsetheight + curtop > document.body.clientheight + document.body.scrolltop - 1) { 
            curtop = document.body.scrolltop + document.body.clientheight - ad.offsetheight; 
            ad.dirv = false; 
        } 
        if(curleft < document.body.scrollleft) { 
            curleft = document.body.scrollleft; 
            ad.dirh = true; 
        } 
        if(curtop < document.body.scrolltop) { 
            curtop = document.body.scrolltop; 
            ad.dirv = true; 
        } 
        ad.style.left = curleft + (ad.dirh ? 1 : -1) + "px"; 
        ad.style.top = curtop + (ad.dirv ? 1 : -1) + "px"; 
    } 
} 
}

//加入收藏 - 使用方法：<a onclick="addfavorite(window.location,document.title)">加入收藏</a> 
function addfavorite(surl, stitle) 
{ 
    try 
    { 
        window.external.addfavorite(surl, stitle); 
    } 
    catch (e) 
    { 
        try 
        { 
            window.sidebar.addpanel(stitle, surl, ""); 
        } 
        catch (e) 
        { 
            alert("加入收藏失败，请使用ctrl+d进行添加"); 
        } 
    } 
} 

//设为首页 - 使用方法：<a onclick="sethome(this,window.location)">设为首页</a> 
function sethome(obj,vrl){ 
        try{ 
                obj.style.behavior='url(#default#homepage)';obj.sethomepage(vrl); 
        } 
        catch(e){ 
                if(window.netscape) { 
                        try { 
                                netscape.security.privilegemanager.enableprivilege("universalxpconnect"); 
                        } 
                        catch (e)  { 
                                alert("此操作被浏览器拒绝！请在浏览器地址栏输入\"about:config\"并回车然后将[signed.applets.codebase_principal_support]设置为'true'");   [page] 
                        } 
                        var prefs = components.classes['@mozilla.org/preferences-service;1'].getservice(components.interfaces.nsiprefbranch); 
                        prefs.setcharpref('browser.startup.homepage',vrl); 
                 } 
        } 
}