var Showbo={author:'showbo',homepage:'http://www.code-design.cn'};  
//是否为ie浏览器  
Showbo.IsIE=!!document.all;  
//ie浏览器版本  
Showbo.IEVersion=(function(){if(!Showbo.IsIE)return -1;try{return parseFloat(/msie ([\d\.]+)/i.exec(navigator.userAgent)[1]);}catch(e){return -1;}})();  
//按id获取对象  
Showbo.$=function(Id,isFrame){var o;if("string"==typeof(Id))o= document.getElementById(Id);else if("object"==typeof(Id))o= Id;else return null;return isFrame?(Showbo.IsIE?frames[Id]:o.contentWindow):o;}  
//按标签名称获取对象  
//页面的高和宽******************************  
Showbo.isStrict=document.compatMode == "CSS1Compat";  
Showbo.BodyScale={x:0,y:0,tx:0,ty:0};//（x，y）：当前的浏览器容器大小  （tx，ty）：总的页面滚动宽度和高度 
Showbo.getClientHeight=function(){/*if(Showbo.IsIE)*/return Showbo.isStrict ? document.documentElement.clientHeight :document.body.clientHeight;/*else return self.innerHeight;*/}  
Showbo.getScrollHeight=function(){var h=!Showbo.isStrict?document.body.scrollHeight:document.documentElement.scrollHeight;return Math.max(h,this.getClientHeight());}  
Showbo.getHeight=function(full){return full?this.getScrollHeight():this.getClientHeight();}  
Showbo.getClientWidth=function(){/*if(Showbo.IsIE)*/return Showbo.isStrict?document.documentElement.clientWidth:document.body.clientWidth;/*else return self.innerWidth;*/}  
Showbo.getScrollWidth=function(){var w=!Showbo.isStrict?document.body.scrollWidth:document.documentElement.scrollWidth;return Math.max(w,this.getClientWidth());}  
Showbo.getWidth=function(full){return full?this.getScrollWidth():this.getClientWidth();}  
Showbo.initBodyScale=function(){Showbo.BodyScale.x=Showbo.getWidth(false);Showbo.BodyScale.y=Showbo.getHeight(false);Showbo.BodyScale.tx=Showbo.getWidth(true);Showbo.BodyScale.ty=Showbo.getHeight(true);} 
//页面的高和宽******************************  
Showbo.Msg={  
    INFO:'info',  
    ERROR:'error',  
    WARNING:'warning',  
    IsInit:false,  
    timer:null,  
    dvTitle:null,  
    dvCT:null,  
    dvBottom:null,  
    dvBtns:null,  
    lightBox:null,  
    dvMsgBox:null,  
    defaultWidth:300,  
    moveProcessbar:function(){  
      var o=Showbo.$('dvProcessbar'),w=o.style.width;  
      if(w=='')w=20;  
      else{  
        w=parseInt(w)+20;  
        if(w>100)w=0;  
      }  
      o.style.width=w+'%';  
    },  
    InitMsg:function(width){  
      //ie下不按照添加事件的循序来执行，所以要注意在调用alert等方法时要检测是否已经初始化IsInit=true       
      var ifStr='<iframe src="javascript:false" mce_src="javascript:false" style="position:absolute; visibility:inherit; top:0px;left:0px;width:100%; height:100%; z-index:-1;'  
          +'filter=\'progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)\';"></iframe>',  
      html='<div class="top"><div class="right"><div class="title" id="dvMsgTitle"></div></div></div>'+  
        '<div class="body"><div class="right"><div class="ct" id="dvMsgCT"></div></div></div>'+  
        '<div class="bottom" id="dvMsgBottom"><div class="right"><div class="btn" id="dvMsgBtns"></div></div></div>';  
      this.dvMsgBox=document.createElement("div");  
      this.dvMsgBox.id="dvMsgBox";  
      this.dvMsgBox.innerHTML+=html;        
      document.body.appendChild(this.dvMsgBox);  
      this.lightBox=document.createElement("div");  
      this.lightBox.id="ShowBolightBox";  
      document.body.appendChild(this.lightBox);  
      if(Showbo.IsIE&&Showbo.IEVersion<7){//加iframe层修正ie6下无法遮盖住select的问题  
        this.lightBox.innerHTML+=ifStr;  
        this.dvMsgBox.innerHTML+=ifStr;  
      }  
      this.dvBottom=Showbo.$('dvMsgBottom');  
      this.dvBtns=Showbo.$('dvMsgBtns');  
      this.dvCT=Showbo.$('dvMsgCT');  
      this.dvTitle=Showbo.$('dvMsgTitle');  
      this.IsInit=true;  
    },  
    checkDOMLast:function(){//此方法非常关键，要不无法显示弹出窗口。两个对象dvMsgBox和lightBox必须处在body的最后两个节点内  
      if(document.body.lastChild!=this.lightBox){  
        document.body.appendChild(this.dvMsgBox);  
        document.body.appendChild(this.lightBox);  
      }  
    },  
    createBtn:function(p,v,fn){  
        var btn=document.createElement("input");  
        btn.type="button";  
        btn.className='bttn';  
        btn.value=v;  
        btn.onmouseover=function(){this.className='btnfocus';}  
        btn.onmouseout=function(){this.className='bttn';}  
        btn.onclick=function(){  
          Showbo.Msg.hide();  
          if(fn)fn(p);  
        }  
        return btn;  
    },  
    alert:function(msg,fn){
      this.show({buttons:{yes:'确认'},msg:msg,fn:fn});
    },
    confirm:function(msg,fn){  
      //fn为回调函数，参数和show方法的一致  
      this.show({buttons:{yes:'确认',no:'取消'},msg:msg,title:'提示',fn:fn});  
    },  
    prompt:function(labelWord,defaultValue,txtId,fn){  
      if(!labelWord)labelWord='请输入：';  
      if(!defaultValue)defaultValue="";  
      if(!txtId)txtId="msg_txtInput";  
      this.show({title:'输入提示',msg:labelWord+'<input type="text" id="'+txtId+'" style="width:200px" value="'+defaultValue+'"/>',buttons:{yes:'确认',no:'取消'},fn:fn});  
    },  
    wait:function(msg,title){  
      if(!msg)msg='正在处理..';  
      this.show({title:title,msg:msg,wait:true});  
    },  
    show:function(cfg){  
      //cfg:{title:'',msg:'',wait:true,icon:'默认为信息',buttons:{yes:'',no:''},fn:function(btn){回调函数,btn为点击的按钮，可以为yes，no},width:显示层的宽}  
      //如果是等待则wait后面的配置不需要了。。   
      if(!cfg)throw("没有指定配置文件！");  
      //添加窗体大小改变监听  
      if(Showbo.IsIE)window.attachEvent("onresize",this.onResize);  
      else  window.addEventListener("resize",this.onResize,false);  
        
      if(!this.IsInit)this.InitMsg();//初始化dom对象  
      else this.checkDOMLast();//检查是否在最后  
        
      //检查是否要指定宽，默认为300  
      if(cfg.width)this.defaultWidth=cfg.width;  
      this.dvMsgBox.style.width=this.defaultWidth+'px';  
      //可以直接使用show方法停止为进度条的窗口  
      if(this.timer){clearInterval(this.timer);this.timer=null;}        
      this.dvTitle.innerHTML='';  
      if(cfg.title)this.dvTitle.innerHTML=cfg.title;  
      this.dvCT.innerHTML='';  
      if(cfg.wait){  
        if(cfg.msg)this.dvCT.innerHTML=cfg.msg;  
        this.dvCT.innerHTML+='<div class="pro"><div class="bg" id="dvProcessbar"></div></div>';  
        this.dvBtns.innerHTML='';  
        this.dvBottom.style.height='10px';  
        this.timer=setInterval(function(){Showbo.Msg.moveProcessbar();},1000);  
      }  
      else{  
        //if(!cfg.icon)cfg.icon=Showbo.Msg.INFO;  
        if(!cfg.buttons||(!cfg.buttons.yes&&!cfg.buttons.no)){  
          cfg.buttons={yes:'确定'};  
        }  
        if(cfg.icon)this.dvCT.innerHTML='<div class="icon '+cfg.icon+'"></div>';  
        if(cfg.msg)this.dvCT.innerHTML+=cfg.msg+'<div class="clear"></div>';  
        this.dvBottom.style.height='45px';  
        this.dvBtns.innerHTML='<div class="height"></div>';  
        if(cfg.buttons.yes){  
          this.dvBtns.appendChild(this.createBtn('yes',cfg.buttons.yes,cfg.fn));  
          if(cfg.buttons.no)this.dvBtns.appendChild(document.createTextNode('　'));  
        }  
        if(cfg.buttons.no)this.dvBtns.appendChild(this.createBtn('no',cfg.buttons.no,cfg.fn));  
      }  
      Showbo.initBodyScale();  
      this.dvMsgBox.style.display='block';  
      this.lightBox.style.display='block';
      this.onResize(false);  
    },  
    hide:function(){  
      this.dvMsgBox.style.display='none';  
      this.lightBox.style.display='none';  
      if(this.timer){clearInterval(this.timer);this.timer=null;}  
      if(Showbo.IsIE)window.detachEvent('onresize',this.onResize);  
      else window.removeEventListener('resize',this.onResize,false);  
    },  
    onResize:function(isResize){  
       if(isResize)Showbo.initBodyScale();  
       Showbo.Msg.lightBox.style.width=Showbo.BodyScale.tx+'px';  
       Showbo.Msg.lightBox.style.height=Showbo.BodyScale.ty+'px';Showbo.Msg.lightBox.style.zIndex=999;
       Showbo.Msg.dvMsgBox.style.top=240+'px';
       Showbo.Msg.dvMsgBox.style.left=Math.floor((Showbo.BodyScale.x-Showbo.Msg.dvMsgBox.offsetWidth)/2)+'px';Showbo.Msg.dvMsgBox.style.zIndex=9999;Showbo.Msg.dvMsgBox.style.position="fixed";
    }

}