请教在一个JS弹出层上关闭的问题

Question

请教在这个JS弹出层的页面中用按钮关闭该弹出层，现在是点层上一个关闭图标关闭的。
JS 苦手，请高手帮忙看下，不胜感激
该弹出层调用的方式是 javascript:Comment('demo.htm',520,300)，弹出层JS文件代码如下：if(!Array.prototype.push)
{
Array.prototype.push=function ()
{
var startLength=this.length;
for(var j=0;j<arguments.length;j++)
{
this[startLength+j]=arguments[j];
}
return this.length;
        }
};
function G()
{
       var elements=new Array();
       for(var j=0;j<arguments.length;j++)
       {
var element=arguments[j];
if(typeof element=='string')
{
        element=document.getElementById(element);
}
if(arguments.length==1)
{
        return element;
}
elements.push(element);
       };
       return elements;
};
Function.prototype.bind=function (object)
{
       var __method=this;
       return function ()
       {
__method.apply(object,arguments);
       };
};
Function.prototype.bindAsEventListener=function (object)
{
       var __method=this;
       return function (event){__method.call(object,event||window.event);};
};
Object.extend=function (destination,source)
{
       for(property in source)
       {
destination[property]=source[property];
       };
       return destination;
};
if(!window.Event)
{
       var Event=new Object();
};
Object.extend(
       Event,
       {
observers:false,
element:function (event)
{
        return event.target||event.srcElement;
},
isLeftClick:function (event)
{
        return (((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));
},
pointerX:function (event)
{
        return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));
},
pointerY:function (event)
{
        return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));
},
stop:function (event)
{
        if(event.preventDefault)
        {
     event.preventDefault();
     event.stopPropagation();
        }
        else
        {
     event.returnValue=false;
     event.cancelBubble=true;
        };
},
findElement:function (event,tagName)
{
        var element=Event.element(event);
        while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase())))
     element=element.parentNode;
        return element;
},

Answer 1

继续
_observeAndCache:function (element,name,observer,useCapture)
{
        if(!this.observers)
     this.observers=[];
        if(element.addEventListener)
        {
     this.observers.push([element,name,observer,useCapture]);
     element.addEventListener(name,observer,useCapture);
        }
        else if(element.attachEvent)
        {
     this.observers.push([element,name,observer,useCapture]);
     element.attachEvent('on'+name,observer);
        };
},
unloadCache:function ()
{
        if(!Event.observers)
     return;
        for(var j=0;j<Event.observers.length;j++)
        {
     Event.stopObserving.apply(this,Event.observers[j]);
     Event.observers[j][0]=null;
        };
        Event.observers=false;
},
observe:function (element,name,observer,useCapture)
{
        var element=G(element);
        useCapture=useCapture||false;
        if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent))
     name='keydown';
        this._observeAndCache(element,name,observer,useCapture);
},
stopObserving:function (element,name,observer,useCapture)
{
        var element=G(element);
        useCapture=useCapture||false;
        if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent))
     name='keydown';
        if(element.removeEventListener)
        {
     element.removeEventListener(name,observer,useCapture);
        }
        else if(element.detachEvent)
        {
     element.detachEvent('on'+name,observer);
        };
}
       }
);
Event.observe(window,'unload',Event.unloadCache,false);
var Class=function ()
{
       var _class=function ()
       {
this.initialize.apply(this,arguments);
       };
       for(j=0;j<arguments.length;j++)
       {
superClass=arguments[j];
for(member in superClass.prototype)
{
        _class.prototype[member]=superClass.prototype[member];
};
       };
       _class.child=function ()
       {
return new Class(this);
       };
       _class.extend=function (f)
       {
for(property in f)
{
        _class.prototype[property]=f[property];
};
       };
       return _class;
};
function space(flag)
{
       if(flag=="begin")
       {
var ele=document.getElementById("ft");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="ft_popup";
ele=document.getElementById("usrbar");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="usrbar_popup";
        }
        else if(flag=="end")
        {
var ele=document.getElementById("ft_popup");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="ft";
ele=document.getElementById("usrbar_popup");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="usrbar";
        };
};var Popup=new Class();
Popup.prototype={
iframeIdName:'ifr_popup',
initialize:function (config)
{
          this.config=Object.extend({contentType:1,isHaveTitle:true,scrollType:'no',isBackgroundCanClick:false,isSupportDraging:true,isShowShadow:true,isReloadOnClose:false,width:400,height:300},config||{});
this.info={shadowWidth:4,title:"",contentUrl:"",contentHtml:"",callBack:null,parameter:null,confirmCon:"",alertCon:"",someHiddenTag:"select,object,embed",someHiddenEle:"",overlay:0,coverOpacity:40};
      this.color={cColor:"#222",bColor:"#FFFFFF",tColor:"#777777",wColor:"#000"};
      /* cColor 修改阴影颜色 wColor 文本颜色*/
       this.dropClass=null;
       this.someToHidden=[];
        if(!this.config.isHaveTitle)
        {
     this.config.isSupportDraging=false;
        }
       this.iniBuild();
},
setContent:function (arrt,val)
{
if(val!='')
{
switch(arrt)
{
case 'width':this.config.width=val;
         break;
         case 'height':this.config.height=val;
         break;
         case 'title':this.info.title=val;
         break;
         case 'contentUrl':this.info.contentUrl=val;
         break;
         case 'contentHtml':this.info.contentHtml=val;
         break;
         case 'callBack':this.info.callBack=val;
         break;
         case 'parameter':this.info.parameter=val;
         break;
         case 'confirmCon':this.info.confirmCon=val;
         break;
         case 'alertCon':this.info.alertCon=val;
         break;
         case 'someHiddenTag':this.info.someHiddenTag=val;
         break;
         case 'someHiddenEle':this.info.someHiddenEle=val;
         break;
         case 'overlay':this.info.overlay=val;
     };
        };
},
iniBuild:function ()
{
        G('dialogCase')?G('dialogCase').parentNode.removeChild(G('dialogCase')):function (){};
        var oDiv=document.createElement('span');
        oDiv.id='dialogCase';
        document.body.appendChild(oDiv);
},
build:function ()
{
var baseZIndex=10001+this.info.overlay*10;
var showZIndex=baseZIndex+2;
this.iframeIdName='ifr_popup'+this.info.overlay;
var path="images/";
var close='<input type="image" id="dialogBoxClose" src="'+path+'dialogclose.gif" border="0" width="18" height="17" align="absmiddle" title="关闭"/>';
var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';
var cover='<div id="dialogBoxBG" style="position:absolute;top:0px;left:0px;width:100%;height:100%;z-index:'+baseZIndex+';'+cB+'background-color:'+this.color.cColor+';display:none;"></div>';
var mainBox='<div id="dialogBox" style="border:10px solid '+this.color.tColor+';display:none;z-index:'+showZIndex+';position:relative;width:'+this.config.width+'px;"><table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="'+this.color.bColor+'">';
if(this.config.isHaveTitle)
{
mainBox+='<tr height="24" bgcolor="'+this.color.tColor+'"><td><table style="-moz-user-select:none;height:24px;" width="100%" border="0" cellpadding="0" cellspacing="0" ><tr>'+'<td width="6" height="24" background="'+path+'tab_table_bg_gray.gif" height="27"></td><td id="dialogBoxTitle" style="color:'+this.color.wColor+';font-size:12px;font-weight:bold;padding-left:10px;" background="'+path+'tab_table_bg_gray.gif" height="27">'+this.info.title+' </td>'+'<td id="dialogClose" width="20" align="right" valign="middle" background="'+path+'tab_table_bg_gray.gif" height="27">'+close+'</td><td width="6" background="'+path+'tab_table_bg_gray.gif" height="27"></td></tr></table></td></tr>';
        }
        else
        {
     mainBox+='<tr height="10"><td align="right">'+close+'</td></tr>';
        };
        mainBox+='<tr style="height:'+this.config.height+'px" valign="top"><td id="dialogBody" style="position:relative;"></td></tr></table></div>'+'<div id="dialogBoxShadow" style="display:none;z-index:'+baseZIndex+';"></div>';
        if(!this.config.isBackgroundCanClick)
        {
     G('dialogCase').innerHTML=cover+mainBox;
     G('dialogBoxBG').style.height=document.body.scrollHeight;
        }
        else
        {
     G('dialogCase').innerHTML=mainBox;
        }
        Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);
        if(this.config.isSupportDraging)
        {
     dropClass=new Dragdrop(this.config.width,this.config.height,this.info.shadowWidth,this.config.isSupportDraging,this.config.contentType);
     
     G("dialogBoxTitle").style.cursor="move";
        };
        this.lastBuild();
},

Answer 2

再继续
lastBuild:function ()
{
        var confirm='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.confirmCon+'</div><div style="margin:20px;"><input id="dialogOk" type="button" value=" 确定 "/> <input id="dialogCancel" type="button" value=" 取消 "/></div></div>';
        var alert='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.alertCon+'</div><div style="margin:20px;"><input id="dialogYES" type="button" value=" 确定 "/></div></div>';
        var baseZIndex=10001+this.info.overlay*10;
        var coverIfZIndex=baseZIndex+4;
        if(this.config.contentType==1)
        {
     var openIframe="<iframe width='100%' style='height:"+this.config.height+"px' name='"+this.iframeIdName+"' id='"+this.iframeIdName+"' src='"+this.info.contentUrl+"' frameborder='0' scrolling='"+this.config.scrollType+"'></iframe>";
     var coverIframe="<div id='iframeBG' style='position:absolute;top:0px;left:0px;width:1px;height:1px;z-index:"+coverIfZIndex+";filter: alpha(opacity=00);opacity:0.00;background-color:#ffffff;'><div>";
     G("dialogBody").innerHTML=openIframe+coverIframe;
        }
        else if(this.config.contentType==2)
        {
     G("dialogBody").innerHTML=this.info.contentHtml;
        }
        else if(this.config.contentType==3)
        {
     G("dialogBody").innerHTML=confirm;Event.observe(G('dialogOk'),"click",this.forCallback.bindAsEventListener(this),false);
     Event.observe(G('dialogCancel'),"click",this.close.bindAsEventListener(this),false);
        }
        else if(this.config.contentType==4)
        {
     G("dialogBody").innerHTML=alert;
     Event.observe(G('dialogYES'),"click",this.close.bindAsEventListener(this),false);
        };
},
reBuild:function ()
{
        G('dialogBody').height=G('dialogBody').clientHeight;
        this.lastBuild();
},
show:function ()
{
   this.hiddenSome();
   this.middle();
   if(this.config.isShowShadow)
     this.shadow();
},forCallback:function ()
{
        return this.info.callBack(this.info.parameter);
},
shadow:function ()
{
        var oShadow=G('dialogBoxShadow');
        var oDialog=G('dialogBox');oShadow['style']['position']="absolute";
        oShadow['style']['background']="#000";
        oShadow['style']['display']="";
        oShadow['style']['opacity']="0.2";
        oShadow['style']['filter']="alpha(opacity=20)";
        oShadow['style']['top']=oDialog.offsetTop+this.info.shadowWidth;
        oShadow['style']['left']=oDialog.offsetLeft+this.info.shadowWidth;
        oShadow['style']['width']=oDialog.offsetWidth;oShadow['style']['height']=oDialog.offsetHeight;
},
middle:function ()
{
if(!this.config.isBackgroundCanClick)
G('dialogBoxBG').style.display='';
var oDialog=G('dialogBox');
oDialog['style']['position']="absolute";
oDialog['style']['display']='';
var sClientWidth=document.body.clientWidth;
var sClientHeight=document.documentElement.clientHeight;
var scrollPos; 
if (typeof window.pageYOffset != 'undefined') { 
   scrollPos = window.pageYOffset; 
} 
else if (typeof document.compatMode != 'undefined' && 
     document.compatMode != 'BackCompat') { 
   scrollPos = document.documentElement.scrollTop; 
} 
else if (typeof document.body != 'undefined') { 
   scrollPos = document.body.scrollTop; 
} 
        var sScrollTop=scrollPos;
        var sleft=(sClientWidth/2)-(oDialog.offsetWidth/2)+50;
        var iTop=-80+(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
        var sTop=iTop>0?iTop:(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
         if(sTop<1)
     sTop="20";
        if(sleft<1)
     sleft="20";
        oDialog['style']['left']=(document.documentElement.clientWidth)/3+"px";
        oDialog['style']['top']=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10)+"px";
window.onscroll = function(){
oDialog['style']['top']=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10)+"px";
 G('dialogBoxShadow').style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10+4)+"px";
};
       // alert("sleft is " + sleft);
    //  alert("sTop is " + sTop);
},
//刷新页面，并关闭当前弹出窗口
reset:function ()
{
if(this.config.isReloadOnClose)
{
// parent.frames['I2'].location.reload();
};
this.close();
},
//关闭窗口
close:function ()
{
G('dialogBox').style.display='none';
if(!this.config.isBackgroundCanClick)
G('dialogBoxBG').style.display='none';
if(this.config.isShowShadow)
G('dialogBoxShadow').style.display='none';
G('dialogBody').innerHTML='';
        this.showSome();
},hiddenSome:function ()
{
        //隐藏someHiddenTag中的所有元素
        var tag=this.info.someHiddenTag.split(",");
        if(tag.length==1&&tag[0]=="")
        {
     tag.length=0;
        }
        for(var j=0;j<tag.length;j++)
        {
     this.hiddenTag(tag[j]);
        };
var ids=this.info.someHiddenEle.split(",");
        if(ids.length==1&&ids[0]=="")
     ids.length=0;
        for(var j=0;j<ids.length;j++)
        {
     this.hiddenEle(ids[j]);
        };
        space("begin");
},
hiddenTag:function (tagName)
{
        var ele=document.getElementsByTagName(tagName);
        if(ele!=null)
        {
     for(var j=0;j<ele.length;j++)
     {
         if(ele[j].style.display!="none"&&ele[j].style.visibility!='hidden')
         {
      ele[j].style.visibility='hidden';
      this.someToHidden.push(ele[j]);
         };
     };
         };
     },     hiddenEle:function (id)
     {
        var ele=document.getElementById(id);
        if(typeof(ele)!="undefined"&&ele!=null)
        {
     ele.style.visibility='hidden';
     this.someToHidden.push(ele);
        }
     },showSome:function ()
     {
        for(var j=0;j<this.someToHidden.length;j++)
        {
     this.someToHidden[j].style.visibility='visible';
        };
        space("end");
     }
        };

Answer 3

再继续
var Dragdrop=new Class();
Dragdrop.prototype={
initialize:function (width,height,shadowWidth,showShadow,contentType)
{
        this.dragData=null;
        this.dragDataIn=null;
        this.backData=null;
        this.width=width;
        this.height=height;
        this.shadowWidth=shadowWidth;
        this.showShadow=showShadow;
        this.contentType=contentType;
        this.IsDraging=false;
        this.oObj=G('dialogBox');
        Event.observe(G('dialogBoxTitle'),"mousedown",this.moveStart.bindAsEventListener(this),false);
},
moveStart:function (event)
{
        this.IsDraging=true;
        if(this.contentType==1)
        {
     G("iframeBG").style.display="";
     G("iframeBG").style.width=this.width;
     G("iframeBG").style.height=this.height;
        };
        Event.observe(document,"mousemove",this.mousemove.bindAsEventListener(this),false);
        Event.observe(document,"mouseup",this.mouseup.bindAsEventListener(this),false);
        Event.observe(document,"selectstart",this.returnFalse,false);
        this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
        this.backData={x:parseInt(this.oObj.style.left),y:parseInt(this.oObj.style.top)};
},
mousemove:function (event)
{
        if(!this.IsDraging)
     return ;
        var iLeft=Event.pointerX(event)-this.dragData["x"]+parseInt(this.oObj.style.left);
        var iTop=Event.pointerY(event)-this.dragData["y"]+parseInt(this.oObj.style.top);
        if(this.dragData["y"]<parseInt(this.oObj.style.top))
     iTop=iTop-12;
        else if(this.dragData["y"]>parseInt(this.oObj.style.top)+25)
     iTop=iTop+12;
        this.oObj.style.left=iLeft;
        this.oObj.style.top=iTop;
        if(this.showShadow)
        {
     G('dialogBoxShadow').style.left=iLeft+this.shadowWidth;
     G('dialogBoxShadow').style.top=iTop+this.shadowWidth;
        };
        this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
        document.body.style.cursor="move";
},
mouseup:function (event)
{
        if(!this.IsDraging)
     return ;
        if(this.contentType==1)
     G("iframeBG").style.display="none";
     document.onmousemove=null;
     document.onmouseup=null;
     var mousX=Event.pointerX(event)-(document.documentElement.scrollLeft||document.body.scrollLeft);
     var mousY=Event.pointerY(event)-(document.documentElement.scrollTop||document.body.scrollTop);
     if(mousX<1||mousY<1||mousX>document.body.clientWidth||mousY>document.body.clientHeight)
     {
         this.oObj.style.left=this.backData["x"];
         this.oObj.style.top=this.backData["y"];
         if(this.showShadow)
         {
      G('dialogBoxShadow').style.left=this.backData.x+this.shadowWidth;
      G('dialogBoxShadow').style.top=this.backData.y+this.shadowWidth;
         };
     };
     this.IsDraging=false;
     document.body.style.cursor="";
     Event.stopObserving(document,"selectstart",this.returnFalse,false);
},
returnFalse:function ()
{
        return false;
}
       };
//begin popwin
function openshow(url,title,w,h,stype)
{
g_pop=new Popup({contentType:stype,isReloadOnClose:true,width:w,height:h});

g_pop.setContent("title",title);

g_pop.setContent("contentUrl",url);
g_pop.build();
g_pop.show();
}
function g_close_pop_re()
{
g_pop.close();
location.reload();
}
function Comment(url,w,h)
{g_pop=new Popup({ contentType:1,isReloadOnClose:true,width:w,height:h});
g_pop.setContent("title","");
g_pop.setContent("scrollType","no");
g_pop.setContent("contentUrl",url);
g_pop.build();
g_pop.show();
}
function g_close_pop()
{
g_pop.close();
g_pop=null;
}
function ShowAlert(title,content,w,h)
        {
           var pop=new Popup({ contentType:4,isReloadOnClose:false,width:w,height:h});
          pop.setContent("title",title);
            pop.setContent("alertCon",content);
           pop.build();
           pop.show();
      }
function Wclose(){
            g_pop.close();
g_pop=null;
}

Answer 4

楼主，帮你实现了<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
<script type="text/javascript">
if(!Array.prototype.push)
{
    Array.prototype.push=function ()
    {
var startLength=this.length;
for(var j=0;j<arguments.length;j++)
{
    this[startLength+j]=arguments[j];
}
return this.length;
        }
};
function G()
{
       var elements=new Array();
       for(var j=0;j<arguments.length;j++)
       {
var element=arguments[j];
if(typeof element=='string')
{
        element=document.getElementById(element);
}
if(arguments.length==1)
{
        return element;
}
elements.push(element);
       };
       return elements;
};
Function.prototype.bind=function (object)
{
       var __method=this;
       return function ()
       {
__method.apply(object,arguments);
       };
};
Function.prototype.bindAsEventListener=function (object)
{
       var __method=this;
       return function (event){__method.call(object,event||window.event);};
};
Object.extend=function (destination,source)
{
       for(property in source)
       {
destination[property]=source[property];
       };
       return destination;
};
if(!window.Event)
{
       var Event=new Object();
};
Object.extend(
       Event,
       {
observers:false,
element:function (event)
{
        return event.target||event.srcElement;
},
isLeftClick:function (event)
{
        return (((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));
},
pointerX:function (event)
{
        return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));
},
pointerY:function (event)
{
        return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));
},
stop:function (event)
{
        if(event.preventDefault)
        {
     event.preventDefault();
     event.stopPropagation();
        }
        else
        {
     event.returnValue=false;
     event.cancelBubble=true;
        };
},
findElement:function (event,tagName)
{
        var element=Event.element(event);
        while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase())))
     element=element.parentNode;
        return element;
},
_observeAndCache:function (element,name,observer,useCapture)
{
        if(!this.observers)
     this.observers=[];
        if(element.addEventListener)
        {
     this.observers.push([element,name,observer,useCapture]);
     element.addEventListener(name,observer,useCapture);
        }
        else if(element.attachEvent)
        {
     this.observers.push([element,name,observer,useCapture]);
     element.attachEvent('on'+name,observer);
        };
},
unloadCache:function ()
{
        if(!Event.observers)
     return;
        for(var j=0;j<Event.observers.length;j++)
        {
     Event.stopObserving.apply(this,Event.observers[j]);
     Event.observers[j][0]=null;
        };
        Event.observers=false;
},
observe:function (element,name,observer,useCapture)
{
        var element=G(element);
        useCapture=useCapture||false;
        if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent))
     name='keydown';
        this._observeAndCache(element,name,observer,useCapture);
},
stopObserving:function (element,name,observer,useCapture)
{
        var element=G(element);
        useCapture=useCapture||false;
        if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent))
     name='keydown';
        if(element.removeEventListener)
        {
     element.removeEventListener(name,observer,useCapture);
        }
        else if(element.detachEvent)
        {
     element.detachEvent('on'+name,observer);
        };
}
       }
);
Event.observe(window,'unload',Event.unloadCache,false);
var Class=function ()
{
       var _class=function ()
       {
this.initialize.apply(this,arguments);
       };
       for(j=0;j<arguments.length;j++)
       {
superClass=arguments[j];
for(member in superClass.prototype)
{
        _class.prototype[member]=superClass.prototype[member];
};
       };
       _class.child=function ()
       {
return new Class(this);
       };
       _class.extend=function (f)
       {
for(property in f)
{
        _class.prototype[property]=f[property];
};
       };
       return _class;
};
function space(flag)
{
       if(flag=="begin")
       {
var ele=document.getElementById("ft");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="ft_popup";
ele=document.getElementById("usrbar");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="usrbar_popup";
        }
        else if(flag=="end")
        {
var ele=document.getElementById("ft_popup");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="ft";
ele=document.getElementById("usrbar_popup");
if(typeof(ele)!="undefined"&&ele!=null)
        ele.id="usrbar";
        };
};

Answer 5

接上var Popup=new Class();
Popup.prototype={
iframeIdName:'ifr_popup',
setCloseComponent:function(htmlCode){
Popup.prototype.closeComponent = htmlCode;
},
initialize:function (config)
{
          this.config=Object.extend({contentType:1,isHaveTitle:true,scrollType:'no',isBackgroundCanClick:false,isSupportDraging:true,isShowShadow:true,isReloadOnClose:false,width:400,height:300},config||{});
this.info={shadowWidth:4,title:"",contentUrl:"",contentHtml:"",callBack:null,parameter:null,confirmCon:"",alertCon:"",someHiddenTag:"select,object,embed",someHiddenEle:"",overlay:0,coverOpacity:40};
      this.color={cColor:"#222",bColor:"#FFFFFF",tColor:"#777777",wColor:"#000"};
      /* cColor 修改阴影颜色 wColor 文本颜色 */
       this.dropClass=null;
       this.someToHidden=[];
        if(!this.config.isHaveTitle)
        {
     this.config.isSupportDraging=false;
        }
       this.iniBuild();
},
setContent:function (arrt,val)
{
    if(val!='')
        {
    switch(arrt)
        {
        case 'width':this.config.width=val;
         break;
         case 'height':this.config.height=val;
         break;
         case 'title':this.info.title=val;
         break;
         case 'contentUrl':this.info.contentUrl=val;
         break;
         case 'contentHtml':this.info.contentHtml=val;
         break;
         case 'callBack':this.info.callBack=val;
         break;
         case 'parameter':this.info.parameter=val;
         break;
         case 'confirmCon':this.info.confirmCon=val;
         break;
         case 'alertCon':this.info.alertCon=val;
         break;
         case 'someHiddenTag':this.info.someHiddenTag=val;
         break;
         case 'someHiddenEle':this.info.someHiddenEle=val;
         break;
         case 'overlay':this.info.overlay=val;
     };
        };
},
iniBuild:function ()
{
        G('dialogCase')?G('dialogCase').parentNode.removeChild(G('dialogCase')):function (){};
        var oDiv=document.createElement('span');
        oDiv.id='dialogCase';
        document.body.appendChild(oDiv);
},
build:function ()
{
        var baseZIndex=10001+this.info.overlay*10;
        var showZIndex=baseZIndex+2;
        this.iframeIdName='ifr_popup'+this.info.overlay;
        var path="images/";
        var close='<input type="image" id="dialogBoxClose" src="'+path+'dialogclose.gif" border="0" width="18" height="17" align="absmiddle" title="关闭"/>';
if(this.closeComponent!=undefined){
      close = this.closeComponent;
        };
        var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';
        var cover='<div id="dialogBoxBG" style="position:absolute;top:0px;left:0px;width:100%;height:100%;z-index:'+baseZIndex+';'+cB+'background-color:'+this.color.cColor+';display:none;"></div>';
        var mainBox='<div id="dialogBox" style="border:10px solid '+this.color.tColor+';display:none;z-index:'+showZIndex+';position:relative;width:'+this.config.width+'px;"><table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="'+this.color.bColor+'">';
if(this.config.isHaveTitle){
         mainBox+='<tr height="24" bgcolor="'+this.color.tColor+'"><td><table style="-moz-user-select:none;height:24px;" width="100%" border="0" cellpadding="0" cellspacing="0" ><tr>'+'<td width="6" height="24" background="'+path+'tab_table_bg_gray.gif" height="27"></td><td id="dialogBoxTitle" style="color:'+this.color.wColor+';font-size:12px;font-weight:bold;padding-left:10px;" background="'+path+'tab_table_bg_gray.gif" height="27">'+this.info.title+' </td>'+'<td id="dialogClose" width="20" align="right" valign="middle" background="'+path+'tab_table_bg_gray.gif" height="27">'+close+'</td><td width="6" background="'+path+'tab_table_bg_gray.gif" height="27"></td></tr></table></td></tr>';
        }else{
      mainBox+='<tr height="10"><td align="right">'+close+'</td></tr>';
        };
        mainBox+='<tr style="height:'+this.config.height+'px" valign="top"><td id="dialogBody" style="position:relative;"></td></tr></table></div>'+'<div id="dialogBoxShadow" style="display:none;z-index:'+baseZIndex+';"></div>';
        if(!this.config.isBackgroundCanClick){
     G('dialogCase').innerHTML=cover+mainBox;
     G('dialogBoxBG').style.height=document.body.scrollHeight;
        }
        else
        {
      G('dialogCase').innerHTML=mainBox;
        }
        Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);
        if(this.config.isSupportDraging)
        {
     dropClass=new Dragdrop(this.config.width,this.config.height,this.info.shadowWidth,this.config.isSupportDraging,this.config.contentType);
     
     G("dialogBoxTitle").style.cursor="move";
        };
        this.lastBuild();
},
lastBuild:function ()
{
        var confirm='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.confirmCon+'</div><div style="margin:20px;"><input id="dialogOk" type="button" value=" 确定 "/> <input id="dialogCancel" type="button" value=" 取消 "/></div></div>';
        var alert='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.alertCon+'</div><div style="margin:20px;"><input id="dialogYES" type="button" value=" 确定 "/></div></div>';
        var baseZIndex=10001+this.info.overlay*10;
        var coverIfZIndex=baseZIndex+4;
        if(this.config.contentType==1)
        {
     var openIframe="<iframe width='100%' style='height:"+this.config.height+"px' name='"+this.iframeIdName+"' id='"+this.iframeIdName+"' src='"+this.info.contentUrl+"' frameborder='0' scrolling='"+this.config.scrollType+"'></iframe>";
     var coverIframe="<div id='iframeBG' style='position:absolute;top:0px;left:0px;width:1px;height:1px;z-index:"+coverIfZIndex+";filter: alpha(opacity=00);opacity:0.00;background-color:#ffffff;'><div>";
     G("dialogBody").innerHTML=openIframe+coverIframe;
        }
        else if(this.config.contentType==2)
        {
     G("dialogBody").innerHTML=this.info.contentHtml;
        }
        else if(this.config.contentType==3)
        {
     G("dialogBody").innerHTML=confirm;Event.observe(G('dialogOk'),"click",this.forCallback.bindAsEventListener(this),false);
     Event.observe(G('dialogCancel'),"click",this.close.bindAsEventListener(this),false);
        }
        else if(this.config.contentType==4)
        {
     G("dialogBody").innerHTML=alert;
     Event.observe(G('dialogYES'),"click",this.close.bindAsEventListener(this),false);
        };
},
reBuild:function ()
{
        G('dialogBody').height=G('dialogBody').clientHeight;
        this.lastBuild();
},
show:function ()
{
   this.hiddenSome();
   this.middle();
   if(this.config.isShowShadow)
     this.shadow();
}, forCallback:function ()
{
        return this.info.callBack(this.info.parameter);
},
shadow:function ()
{
        var oShadow=G('dialogBoxShadow');
        var oDialog=G('dialogBox');oShadow['style']['position']="absolute";
        oShadow['style']['background']="#000";
        oShadow['style']['display']="";
        oShadow['style']['opacity']="0.2";
        oShadow['style']['filter']="alpha(opacity=20)";
        oShadow['style']['top']=oDialog.offsetTop+this.info.shadowWidth;
        oShadow['style']['left']=oDialog.offsetLeft+this.info.shadowWidth;
        oShadow['style']['width']=oDialog.offsetWidth;oShadow['style']['height']=oDialog.offsetHeight;
},
middle:function ()
{
        if(!this.config.isBackgroundCanClick)
        G('dialogBoxBG').style.display='';
        var oDialog=G('dialogBox');
        oDialog['style']['position']="absolute";
        oDialog['style']['display']='';
        var sClientWidth=document.body.clientWidth;
        var sClientHeight=document.documentElement.clientHeight;
var scrollPos; 
if (typeof window.pageYOffset != 'undefined') { 
   scrollPos = window.pageYOffset; 
} 
else if (typeof document.compatMode != 'undefined' && 
     document.compatMode != 'BackCompat') { 
   scrollPos = document.documentElement.scrollTop; 
} 
else if (typeof document.body != 'undefined') { 
   scrollPos = document.body.scrollTop; 
} 
        var sScrollTop=scrollPos;
        var sleft=(sClientWidth/2)-(oDialog.offsetWidth/2)+50;
        var iTop=-80+(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
        var sTop=iTop>0?iTop:(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
         if(sTop<1)
     sTop="20";
        if(sleft<1)
     sleft="20";
        oDialog['style']['left']=(document.documentElement.clientWidth)/3+"px";
        oDialog['style']['top']=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10)+"px";
        window.onscroll = function(){
            oDialog['style']['top']=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10)+"px";
             G('dialogBoxShadow').style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight)/10+4)+"px";
            };
       // alert("sleft is " + sleft);
    // alert("sTop is " + sTop);
},
// 刷新页面，并关闭当前弹出窗口
reset:function ()
{
    if(this.config.isReloadOnClose)
        {
        // parent.frames['I2'].location.reload();
        };
        this.close();
},

Answer 6

再接上// 关闭窗口
close:function ()
{
    G('dialogBox').style.display='none';
        if(!this.config.isBackgroundCanClick)
    G('dialogBoxBG').style.display='none';
        if(this.config.isShowShadow)
    G('dialogBoxShadow').style.display='none';
        G('dialogBody').innerHTML='';
        this.showSome();
}, hiddenSome:function ()
{
        // 隐藏someHiddenTag中的所有元素
        var tag=this.info.someHiddenTag.split(",");
        if(tag.length==1&&tag[0]=="")
        {
     tag.length=0;
        }
        for(var j=0;j<tag.length;j++)
        {
     this.hiddenTag(tag[j]);
        };
var ids=this.info.someHiddenEle.split(",");
        if(ids.length==1&&ids[0]=="")
     ids.length=0;
        for(var j=0;j<ids.length;j++)
        {
     this.hiddenEle(ids[j]);
        };
        space("begin");
},
hiddenTag:function (tagName)
{
        var ele=document.getElementsByTagName(tagName);
        if(ele!=null)
        {
     for(var j=0;j<ele.length;j++)
     {
         if(ele[j].style.display!="none"&&ele[j].style.visibility!='hidden')
         {
      ele[j].style.visibility='hidden';
      this.someToHidden.push(ele[j]);
         };
     };
         };
     },      hiddenEle:function (id)
     {
        var ele=document.getElementById(id);
        if(typeof(ele)!="undefined"&&ele!=null)
        {
     ele.style.visibility='hidden';
     this.someToHidden.push(ele);
        }
     }, showSome:function ()
     {
        for(var j=0;j<this.someToHidden.length;j++)
        {
     this.someToHidden[j].style.visibility='visible';
        };
        space("end");
     }
        };
var Dragdrop=new Class();
Dragdrop.prototype={
initialize:function (width,height,shadowWidth,showShadow,contentType){
        this.dragData=null;
        this.dragDataIn=null;
        this.backData=null;
        this.width=width;
        this.height=height;
        this.shadowWidth=shadowWidth;
        this.showShadow=showShadow;
        this.contentType=contentType;
        this.IsDraging=false;
        this.oObj=G('dialogBox');
        Event.observe(G('dialogBoxTitle'),"mousedown",this.moveStart.bindAsEventListener(this),false);
},
moveStart:function (event){
        this.IsDraging=true;
        if(this.contentType==1){
     G("iframeBG").style.display="";
     G("iframeBG").style.width=this.width;
     G("iframeBG").style.height=this.height;
        };
        Event.observe(document,"mousemove",this.mousemove.bindAsEventListener(this),false);
        Event.observe(document,"mouseup",this.mouseup.bindAsEventListener(this),false);
        Event.observe(document,"selectstart",this.returnFalse,false);
        this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
        this.backData={x:parseInt(this.oObj.style.left),y:parseInt(this.oObj.style.top)};
},
mousemove:function (event)
{
        if(!this.IsDraging)
     return ;
        var iLeft=Event.pointerX(event)-this.dragData["x"]+parseInt(this.oObj.style.left);
        var iTop=Event.pointerY(event)-this.dragData["y"]+parseInt(this.oObj.style.top);
        if(this.dragData["y"]<parseInt(this.oObj.style.top))
     iTop=iTop-12;
        else if(this.dragData["y"]>parseInt(this.oObj.style.top)+25)
     iTop=iTop+12;
        this.oObj.style.left=iLeft;
        this.oObj.style.top=iTop;
        if(this.showShadow)
        {
     G('dialogBoxShadow').style.left=iLeft+this.shadowWidth;
     G('dialogBoxShadow').style.top=iTop+this.shadowWidth;
        };
        this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
        document.body.style.cursor="move";
},
mouseup:function (event){
if(!this.IsDraging)
return ;
if(this.contentType==1)
G("iframeBG").style.display="none";
     document.onmousemove=null;
     document.onmouseup=null;
     var mousX=Event.pointerX(event)-(document.documentElement.scrollLeft||document.body.scrollLeft);
     var mousY=Event.pointerY(event)-(document.documentElement.scrollTop||document.body.scrollTop);
     if(mousX<1||mousY<1||mousX>document.body.clientWidth||mousY>document.body.clientHeight)
     {
         this.oObj.style.left=this.backData["x"];
         this.oObj.style.top=this.backData["y"];
         if(this.showShadow)
         {
      G('dialogBoxShadow').style.left=this.backData.x+this.shadowWidth;
      G('dialogBoxShadow').style.top=this.backData.y+this.shadowWidth;
         };
     };
     this.IsDraging=false;
     document.body.style.cursor="";
     Event.stopObserving(document,"selectstart",this.returnFalse,false);
},
returnFalse:function (){
return false;
}
       };
// begin popwin
function openshow(url,title,w,h,stype){
    g_pop=new Popup({contentType:stype,isReloadOnClose:true,width:w,height:h});
    g_pop.setContent("title",title);
    g_pop.setContent("contentUrl",url);
    g_pop.build();
    g_pop.show();
}
function g_close_pop_re(){
    g_pop.close();
    location.reload();
}
function Comment(url,w,h){
g_pop=new Popup({ contentType:1,isReloadOnClose:true,width:w,height:h});
    g_pop.setContent("title","");
    g_pop.setContent("scrollType","no");
    g_pop.setContent("contentUrl",url);
    //你可以通过设个函数设置关闭按钮是图片还是链接还是button，如果不设置，默认就是你之前那种
    g_pop.setCloseComponent("<button id='dialogBoxClose'>我的关闭按钮</button>");
    g_pop.build();
    g_pop.show();
}
function g_close_pop(){
    g_pop.close();
    g_pop=null;
}
function ShowAlert(title,content,w,h){
var pop=new Popup({ contentType:4,isReloadOnClose:false,width:w,height:h});
pop.setContent("title",title);
pop.setContent("alertCon",content);
pop.build();
pop.show();
}
function Wclose(){
    g_pop.close();
    g_pop=null;
} </script>
  </head>
  
  <body>
    <button onclick="Comment('demo.htm',520,300)">弹出</button>
  </body>
</html>

Answer 7

谢谢楼上的，本身的源码就可以关闭，但是我是想在demo.htm这个页面用个事件来关闭弹出层。

Answer 8

//关闭窗口
close:function ()
{
    G('dialogBox').style.display='none';
        if(!this.config.isBackgroundCanClick)
    G('dialogBoxBG').style.display='none';
        if(this.config.isShowShadow)
    G('dialogBoxShadow').style.display='none';
        G('dialogBody').innerHTML='';
        this.showSome();
}先看弹出窗口时那个关闭那里的源码是啥,
直接在demo.htm也加个这关闭的按钮, 事件就等于那个源码里的关闭,
如果不行, 自己再写个关闭的, 照着它的关闭函数复制一份

Answer 9

哦, 直接调这里,function g_close_pop_re()
{
    g_pop.close();
    location.reload();
}<a href="#; return false" onclick="g_close_pop_re()">关闭</a>

Answer 10

几个关闭函数我都试了，没有用。
我把代码打包了，麻烦您看看。http://pic.zttit.com/FloatLayer/index.htm

Answer 11

它那个按钮就加了个ID, 为 dialogBoxClose
你在你的关闭一上也加上这个ID,
如果不行, 就改成 dialogBoxClose1
然后再在这行下, 复制一行, 改成
Event.observe(G('dialogBoxClose1'),"click",this.reset.bindAsEventListener(this),false);

Answer 12

ls 加一行就出错了，我把源码打了个包，麻烦帮看看吧。http://pic.zttit.com/FloatLayer/FloatLayer.rar

Answer 13

<a href="#; return false;" onclick="parent.g_close_pop_re();">关闭</a>
这样加,
parent.g_close_pop_re()

Answer 14

<a href="#; return false;" onclick="close()">关闭</a>写个方法: 
function close(){
    parent.g_close_pop_re();
    parent.window.location.href = parent.window.location.href;// ,相当于刷新,
    // 或者 
    // parent.window.reload();
   // window.opener.location.href=window.opener.location.href; 
   // window.opener.location.reload();
//哪个可以用哪个
}

Answer 15

这个函数是用 onclick 调用的，响应鼠标的点击，能不能自动执行呢？

Answer 16

不是 <body onLoad="javascript:parent.g_close_pop_re();"> 这样的，而是我想等待一段程序执行完之后再执行。谢谢。