//为数组Array添加一个push方法
//为数组的末尾加入一个对象
if(!Array.prototype.push){
	Array.prototype.push=function(){
		var startLength=this.length;
		for(var i=0;i<arguments.length;i++)
			this[startLength+i]=arguments[i];
		return this.length
	}
};

function G(){
	var elements=new Array();
	for(var i=0;i<arguments.length;i++){
		var element=arguments[i];
		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 i=0;i<Event.observers.length;i++){
				Event.stopObserving.apply(this,Event.observers[i]);
				Event.observers[i][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(i=0;i<arguments.length;i++){
		superClass=arguments[i];
		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
};

//改变最顶端和最低端的div的id值
//如果flag为begin，则为弹出状态的id值
//如果flag为end，则为非弹出状态的id值，即原本的id值
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){
		
		//contentType:设置内容区域为什么类型：1为另外一个html文件 | 2为自定义html字符串 | 3为confirm对话框 | 4为alert警告对话框
		//isHaveTitle:是否显示标题栏
		//scrollType：设置或获取对话框中的框架是否可被滚动
		//isBackgroundCanClick：弹出对话框后，是否允许蒙布后的所有元素被点击。也就是如果为false的话，就会有全屏蒙布，如果为true的话，就会去掉全屏蒙布
		//isSupportDraging：是否支持拖拽
		//isShowShadow：是否现实阴影
		//isReloadOnClose：是否刷新页面，并关闭对话框
		//width：宽度
		//height：高度	
		this.config=Object.extend(
			{
				contentType:1,
				isHaveTitle:true,
				scrollType:'no',
				isBackgroundCanClick:false,
				isSupportDraging:true,
				isShowShadow:true,
				isReloadOnClose:true,
				isHeightFull:false,
				isWidthFull:false,
				width:400,
				height:300
			},
			config||{}
		);
		
		//shadowWidth  ：阴影的宽度
	    //contentUrl   ：html链接页面
        //contentHtml  ：html内容
		//callBack     ：回调的函数名
		//parameter    ：回调的函数名中传的参数
		//confirmCon   ：对话框内容
		//alertCon     ：警告框内容
		//someHiddenTag：页面中需要隐藏的元素列表，以逗号分割
		//someHiddenEle：需要隐藏的元素的ID列表(和someToHidden的区别是：someHiddenEle是通过getElementById，而someToHidden是通过getElementByTagName，里面放的是对象)
		//overlay      ：
		//coverOpacity ：蒙布的透明值		
		this.info={
			shadowWidth:4,
			title:"",
			contentUrl:"",
			contentHtml:"",
			callBack:null,
			parameter:null,
			confirmCon:"",
			alertCon:"",
			someHiddenTag:"object,embed",
			someHiddenEle:"",
			overlay:0,
			coverOpacity:40
		};
		
		//设置颜色
		// cColor:蒙布的背景, 
		// bColor:内容区域的背景, 
		// tColor:标题栏和边框的颜色,
		// wColor:字体的背景色		
		this.color={
			//cColor:"#EEEEEE",
			cColor:"#000000",
			bColor:"#FFFFFF",
			tColor:"#709CD2",
			wColor:"#FFFFFF"
		};
		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(){
		//设置全屏蒙布的z-index		
		var baseZIndex=10001+this.info.overlay*10;
		//设置蒙布上的弹出窗口的z-index(比蒙布的z-index高2个值)		
		var showZIndex=baseZIndex+2;
		//定义框架名称
		this.iframeIdName='ifr_popup'+this.info.overlay;
		//设置图片的主路径
		//var path="";
		//关闭按钮		
		var close='<input type="image" id="dialogBoxClose" src="/images/dialogclose.gif" border="0" width="16" height="16" align="absmiddle" title="unkown"/>';
		//使用滤镜设置对象的透明度
		var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';
		//设置全屏的蒙布		
		var cover='<div id="dialogBoxBG" style="position:absolute;top:0px;left:0px;width:10000px;height:100%;z-index:'+baseZIndex+';'+cB+'background-color:'+this.color.cColor+';display:none;"></div>';
		
		
		//设置弹出的主窗口设置
		var mainBox='';
		
		if(this.config.isHeightFull){
			mainBox='<div id="dialogBox" style="border:1px solid '+this.color.tColor+';display:none;z-index:'+showZIndex+';position:relative;width:'+this.config.width+'px;height:100%"><table width="100%" height=100% border="0" cellpadding="0" cellspacing="0" bgcolor="'+this.color.bColor+'">';
		}else{
			mainBox='<div id="dialogBox" style="border:1px 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+'">';
		}
		
		
		//设置窗口标题栏		
		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"></td><td id="dialogBoxTitle" style="color:'+this.color.wColor+';font-size:14px;font-weight:bold;">'+this.info.title+'&nbsp;</td>'+'<td id="dialogClose" width="20" align="right" valign="middle">'+close+'</td></tr></table></td></tr>'
		}else{
			mainBox+='<tr height="0"><td align="right">'+close+'</td></tr>'			
		};		
		
		
		//设置窗口主内容区域
		if(this.config.isHeightFull){
			mainBox+='<tr style="height:100%" valign="top"><td id="dialogBody" style="position:relative;"></td></tr></table></div>'+'<div id="dialogBoxShadow" style="display:none;z-index:'+baseZIndex+';"></div>';
		}else{
			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>';
		}
		
		//如果有蒙布		
		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);
		
		//如果支持拖动,则设置拖动处理
		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(){
		//设置confim对话框的具体内容
		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"/>&nbsp;<input id="dialogCancel" type="button" value="取消"/></div></div>';
		
		//设置alert对话框的具体内容
		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;
		
		//判断内容类型决定窗口的主内容区域应该显示什么		
		if(this.config.contentType==1){
			
			
			var openIframe='';
			if(this.config.isHeightFull){
				openIframe="<iframe width='100%' style='height:100%' name='"+this.iframeIdName+"' id='"+this.iframeIdName+"' src='"+this.info.contentUrl+"' frameborder='0' scrolling='"+this.config.scrollType+"'></iframe>";
			}else{
				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)
		}
	},
	
	//重新加载弹出窗口的高度和内容
	reBuild:function(){
		G('dialogBody').height=G('dialogBody').clientHeight;
		this.lastBuild()
	},
	show:function(){
		//隐藏一些在info中制定的元素		
		this.hiddenSome();
		//弹出窗口居中		
		this.middle();
		//设置阴影		
		if(this.config.isShowShadow)
			this.shadow()
	},
	//设置回调函数	
	forCallback:function(){
		return this.info.callBack(this.info.parameter)
	},
	
	//为弹出窗口设置阴影	
	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
	},
	//让弹出窗口居中显示	
	middle:function(top){
		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.body.clientHeight;
		var sScrollTop=document.body.scrollTop;
		var sleft=(document.body.clientWidth/2)-(oDialog.offsetWidth/2);
		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";
			
		if(typeof(top) == "undefined"){
			//sTop="210";
		}else{
			sTop=top;
		}
				
		
		oDialog['style']['left']=sleft;
		
		if(this.config.isHeightFull){
			oDialog['style']['top']=parseInt(document.body.scrollTop,0);
			document.body.style.overflow="hidden";
		}else{
			oDialog['style']['top']=sTop
		}
	},
	
	//刷新页面，并关闭当前弹出窗口	
	reset:function(){
		if(this.config.isReloadOnClose){
			top.location.reload()
		};
		this.close()
		
	},
	//关闭当前弹出窗口	
	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()
		document.body.style.overflow="";
	},
	//隐藏someHiddenTag和someHiddenEle中的所有元素
	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 i=0;i<tag.length;i++){
			this.hiddenTag(tag[i])
		};
		//隐藏someHiddenEle中的所有逗号分割的ID的元素		
		var ids=this.info.someHiddenEle.split(",");
		if(ids.length==1&&ids[0]=="")
			ids.length=0;
		for(var i=0;i<ids.length;i++){
			this.hiddenEle(ids[i])
		};
		//改变顶部和底部的div的id值为弹出状态的id值,祥见space的实现		
		space("begin")
	},
	//隐藏一组元素
	hiddenTag:function(tagName){
		var ele=document.getElementsByTagName(tagName);
		if(ele!=null){
			for(var i=0;i<ele.length;i++){
				if(ele[i].style.display!="none"&&ele[i].style.visibility!='hidden'){
					ele[i].style.visibility='hidden';
					this.someToHidden.push(ele[i])
				}
			}
		}
	},
	//隐藏单个元素
	hiddenEle:function(id){
		var ele=document.getElementById(id);
		if(typeof(ele)!="undefined"&&ele!=null){
			ele.style.visibility='hidden';
			this.someToHidden.push(ele)
		}
	},
	//将someToHidden中保存的隐藏元素全部显示
	//并恢复顶部和底部的div为原来的id值	
	showSome:function(){
		for(var i=0;i<this.someToHidden.length;i++){
			this.someToHidden[i].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
	}
};