主页有A B C三个层,默认首先显示是A层,当我现显示B层后,点击B层的按键后,主页又显示A层了,我想显示的是B层,同样,当我显示C层后,在主页不管怎样操作都是显示C层,除非点击A层或关闭主页.这就是我想要的.

解决方案 »

  1.   

    描述的实在是看不明白 
    给你我写的一个组件 就是实现展开收缩功能的
    //
    //     Usage:
    //        onclick=Collapsable.Initial('id1','id2','cssclass1','cssclass2',false);
    //        如果要保存视图状态,则在页面加载的时候需要还原试图状态 Collpasagle.LoadViewState()
    //     Depend:
    //        System.Cookie {System.js};
    //    
    //-----------------------------------------------------------------------//var Collapsable={
        
          //false表示正常显示的,还没有折叠起来,true表示已经折叠起来了
          IsCollapse:false,
          Target:null,
          Sender:null,
          //senderid表示点击的对象ID
          //targetid表示要隐藏的对象ID
          //senderCssName表示正常情况下的CssClass
          //senderCssName1表示折叠起来的时候CssClass
          //isSaveViewState 表示是否要保存折叠状态,默认是保存状态
          Initial:function(senderid,targetid,senderCssName,senderCssName1,isSaveViewState)
          {
             this.Target=$(targetid);      
             this.Sender=$(senderid);         if(this.Target.style.display=="none")
                   this.IsCollapse=true;
             else
                this.IsCollapse=false;
                
             if(this.IsCollapse)
             {         
                 this.Target.style.display="block";
                 this.Sender.className=senderCssName;                     
             }
             else
             {
                 this.Target.style.display="none";
                 this.Sender.className=senderCssName1;            
                 System.Cookie.SetCookie(targetid,senderid);          
              }   
              this.IsCollapse=this.IsCollapse?false:true;
              
              if(!isSaveViewState||isSaveViewState)
                  this.SaveViewState(senderid,senderCssName1,targetid,this.IsCollapse);    
              
              return this.IsCollapse;    
          },
          ///还原视图状态
          LoadViewState:function()
          {
            var cookie=System.Cookie.GetCookie("collpanel");      
            if(cookie)
            {     
                var list=cookie.split("#");
                for(var i=0;i<list.length;i++)
                {
                   var data=list[i].split('|');
                   if($(data[0])&&$(data[2])&&data[3]&&data[3]=="true")
                   {
                       $(data[2]).style.display="none";
                       $(data[0]).className=eval('data[1]');
                   }
                }    
             }       
          },
          //senderId,sender在收缩状态的cssClass,目标Id,目标id的收缩状态{true,false}
          SaveViewState:function(senderid,senderCssName1,targetid,targetColl)
          {
            var cookie=System.Cookie.GetCookie("collpanel");
            var newcookie=new Array();
            if(cookie)
            {     
                var list=cookie.split("#");
                for(var i=0;i<list.length;i++)
                {
                   var data=list[i].split('|');
                   if(data[0]==senderid)
                      continue;
                   else
                   {
                     newcookie[newcookie.length]=list[i];
                   }       
                }
                newcookie[newcookie.length]=senderid+"|"+senderCssName1+"|"+targetid+"|"+targetColl;
                cookie=newcookie.join('#');
             }
             else
             {
               cookie=senderid+"|"+senderCssName1+"|"+targetid+"|"+targetColl;
             }
             System.Cookie.SetCookie("collpanel",cookie);
          }
    }var System=System?System:{};System.Cookie=
    {
        // Create a cookie with the specified name and value.The cookie expires at the end of the 20th century.
        SetCookie:function(sName, sValue)
        {
            date = new Date();
            document.cookie = sName + "=" + escape(sValue) + ";";
        },
        // Retrieve the value of the cookie with the specified name.
        GetCookie:function(sName)
        {
            // cookies are separated by semicolons
            var aCookie = document.cookie.split("; ");
            for (var i=0; i < aCookie.length; i++)
            {
            // a name/value pair (a crumb) is separated by an equal sign
            var aCrumb = aCookie[i].split("=");
            if (sName == aCrumb[0])
            return unescape(aCrumb[1]);
            }
            return null;
        },
        // Delete the cookie with the specified name.
        DelCookie:function(sName)
        {
        document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
        }
    }
      

  2.   

    不会吧:用二个层来说.
    主页有A B 二个层,默认显示是A层,当我点击菜单显示B层后,接着点击B层表格里的的提交按键,主页又显示A层了,我想显示的是B层.
      

  3.   

    页面刷新了的话.你需要保存状态,可以用session,或者viewstate,cookie等
    也可以用url上加标志显示哪个曾
    还可以用无刷新的来做.
      

  4.   

    你用这个看看,,网上的:
    javascript:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>网页特效|Linkweb.cn/Js|---用层模拟的小窗口(可拖动展合)</title>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
        <style type='text/css'>
    <!--
    body{font-size:12px;}
    a:visited{text-decoration:none;color:slategray;}
    a:hover{text-decoration:underline;color:slategray;}
    a:link{text-decoration:none;color:slategray;}
    -->
    </style>    <script language="JScript">
    <!--
    //可以打包为js文件;
    var x0=0,y0=0,x1=0,y1=0;
    var offx=6,offy=6;
    var moveable=false;
    var hover='orange',normal='#336699';//color;
    var index=10000;//z-index;
    //开始拖动;
    function startDrag(obj)
    {
    //debugger
    if(event.button==1)
    {
    //锁定标题栏;
    obj.setCapture();
    //定义对象;
    var win = obj.parentNode;
    var sha = win.nextSibling;
    //记录鼠标和层位置;
    x0 = event.clientX;
    y0 = event.clientY;
    x1 = parseInt(win.style.left);
    y1 = parseInt(win.style.top);
    //记录颜色;
    normal = obj.style.backgroundColor;
    //改变风格;
    obj.style.backgroundColor = hover;
    win.style.borderColor = hover;
    obj.nextSibling.style.color = hover;
    sha.style.left = x1 + offx;
    sha.style.top  = y1 + offy;
    moveable = true;
    }
    }
    //拖动;
    function drag(obj)
    {
    //debugger
    if(moveable)
    {
    var win = obj.parentNode;
    var sha = win.nextSibling;
    win.style.left = x1 + event.clientX - x0;
    win.style.top  = y1 + event.clientY - y0;
    sha.style.left = parseInt(win.style.left) + offx;
    sha.style.top  = parseInt(win.style.top) + offy;
    }
    }
    //停止拖动;
    function stopDrag(obj)
    {
    //debugger
    if(moveable)
    {
    var win = obj.parentNode;
    var sha = win.nextSibling;
    var msg = obj.nextSibling;
    win.style.borderColor     = normal;
    obj.style.backgroundColor = normal;
    msg.style.color           = normal;
    sha.style.left = obj.parentNode.style.left;
    sha.style.top  = obj.parentNode.style.top;
    obj.releaseCapture();
    moveable = false;
    }
    }
    //获得焦点;
    function getFocus(obj)
    {
    //debugger
    if(obj.style.zIndex!=index)
    {
    index = index + 2;
    var idx = index;
    obj.style.zIndex=idx;
    obj.nextSibling.style.zIndex=idx-1;
    }
    }
    //最小化;
    function min(obj)
    {
    //debugger
    var win = obj.parentNode.parentNode;
    var sha = win.nextSibling;
    var tit = obj.parentNode;
    var msg = tit.nextSibling;
    var flg = msg.style.display=="none";
    if(flg)
    {
    win.style.height  = parseInt(msg.style.height) + parseInt(tit.style.height) + 2*2;
    sha.style.height  = win.style.height;
    msg.style.display = "block";
    obj.innerHTML = "0";
    }
    else
    {
    win.style.height  = parseInt(tit.style.height) + 2*2;
    sha.style.height  = win.style.height;
    obj.innerHTML = "2";
    msg.style.display = "none";
    }
    }
    //创建一个对象;
    function xWin(id,w,h,l,t,tit,msg)
    {
    //debugger
    index = index+2;
    this.id      = id;
    this.width   = w;
    this.height  = h;
    this.left    = l;
    this.top     = t;
    this.zIndex  = index;
    this.title   = tit;
    this.message = msg;
    this.obj     = null;
    this.bulid   = bulid;
    this.bulid();
    }
    //初始化;
    function bulid()
    {
    //debugger
    var str = ""
    + "<div id=xMsg" + this.id + " "
    + "style='"
    + "z-index:" + this.zIndex + ";"
    + "width:" + this.width + ";"
    + "height:" + this.height + ";"
    + "left:" + this.left + ";"
    + "top:" + this.top + ";"
    + "background-color:" + normal + ";"
    + "color:" + normal + ";"
    + "font-size:8pt;"
    + "font-family:Tahoma;"
    + "position:absolute;"
    + "cursor:default;"
    + "border:2px solid " + normal + ";"
    + "' "
    + "onmousedown='getFocus(this)'>"
    + "<div "
    + "style='"
    + "background-color:" + normal + ";"
    + "width:" + (this.width-2*2) + ";"
    + "height:20;"
    + "color:white;"
    + "' "
    + "onmousedown='startDrag(this)' "
    + "onmouseup='stopDrag(this)' "
    + "onmousemove='drag(this)' "
    + "ondblclick='min(this.childNodes[1])'"
    + ">"
    + "<span style='width:" + (this.width-2*12-4) + ";padding-left:3px;'>" + this.title + "</span>"
    + "<span style='width:12;border-width:0px;color:white;font-family:webdings;' onclick='min(this)'>0</span>"
    + "<span style='width:12;border-width:0px;color:white;font-family:webdings;' onclick='ShowHide(\""+this.id+"\",null)'>r</span>"
    + "</div>"
    + "<div style='"
    + "width:100%;"
    + "height:" + (this.height-20-4) + ";"
    + "background-color:white;"
    + "line-height:14px;"
    + "word-break:break-all;"
    + "padding:3px;"
    + "'>" + this.message + "</div>"
    + "</div>"
    + "<div id=xMsg" + this.id + "bg style='"
    + "width:" + this.width + ";"
    + "height:" + this.height + ";"
    + "top:" + this.top + ";"
    + "left:" + this.left + ";"
    + "z-index:" + (this.zIndex-1) + ";"
    + "position:absolute;"
    + "background-color:black;"
    + "filter:alpha(opacity=40);"
    + "'></div>";
    document.body.insertAdjacentHTML("beforeEnd",str);
    }
    //显示隐藏窗口
    function ShowHide(id,dis){
    //debugger
    var bdisplay = (dis==null)?((document.getElementById("xMsg"+id).style.display=="")?"none":""):dis
    document.getElementById("xMsg"+id).style.display = bdisplay;
    document.getElementById("xMsg"+id+"bg").style.display = bdisplay;
    }
    //modify by haiwa @ 2005-7-14 
    //
    //-->
        </script>    <script language='JScript'>
    <!--
    function initialize()
    {
    //debugger
    var a = new xWin("1",160,200,200,200,"窗口1","xWin <br> A Cool Pop Div Window<br>Version:1.0<br>2002-8-13");
    var b = new xWin("2",240,200,100,100,"窗口2","Welcome to visited my personal website:<br><a href=http://linkweb.cn/js target=_blank>http://linkweb.cn/js</a><br>and u can also sign my guestbook at:<br><a href=http://linkweb.cn/Js/GBook/Index.php target=_blank>http://linkweb.cn/Js/GBook/Index.php</a><br><br>...");
    var c = new xWin("3",200,160,250,50,"窗口3","Copyright by <a href='mailto:[email protected]'>LinkWeb.cN</a>!");
    ShowHide("1","none");//隐藏窗口1
    }
    window.onload = initialize;
    //-->
        </script></head>
    <base target="_blank" />
    <body onselectstart='return false' oncontextmenu='return false'>
        <a onclick="ShowHide('1',null);return false;" href="">窗口1</a> <a onclick="ShowHide('2',null);return false;"
            href="">窗口2</a> <a onclick="ShowHide('3',null);return false;" href="">窗口3</a>
    </body>
    </html>