// ************************ 拖動(dòng) *********************************
    function setDrag(e){
            var drag_flag = true; 
            var begin_x = getX(e);
            //添加蒙板
            createMask();
            //添加半透明拖動(dòng)條
            createSplitDiv();

    function getX(e){
            if(window.event) e = window.event;
            return (e.x || e.clientX);
    }        

    function createSplitDiv(){
        //半透明的拖動(dòng)條
        var _top = $doc("topArea").offsetHeight +"px";
        var _left = $doc("dragBar").offsetLeft +"px";;
        var _height = $doc("dragBar").offsetHeight +"px";;

        var splitDivCss="position:absolute;width:6px;height:"+_height+";top:"+_top+";left:"+_left+";cursor:col-
resize;background-color:#cccccc;overflow:hidden;z-index:10010;filter:alpha(opacity=50);opacity:0.5;";
        var _splitDiv = document.createElement("div");
        _splitDiv.id = "splitDiv";
        _splitDiv.style.cssText = splitDivCss;

        document.body.appendChild(_splitDiv);

    }    
    function createMask(){
            try{

                //創(chuàng)建背景
                var rootEl=document.documentElement||document.body;
                var docHeight=((rootEl.clientHeight>rootEl.scrollHeight)?
rootEl.clientHeight:rootEl.scrollHeight)+"px";
                var docWidth=((rootEl.clientWidth>rootEl.scrollWidth)?rootEl.clientWidth:rootEl.scrollWidth)
+"px";
                var 
shieldStyle="position:absolute;top:0px;left:0px;width:"+docWidth+";height:"+docHeight+";background:#cccccc;z-
index:10000;filter:alpha(opacity=0);opacity:0";
                var _shield = document.createElement("div");
                _shield.id = "shield";
                _shield.style.cssText = shieldStyle;
                document.body.appendChild(_shield);
            }catch(e){}
        }
        //拖動(dòng)時(shí)執(zhí)行的函數(shù)
        document.onmousemove = function(e){
            try{
                if(drag_flag){
                        var now_x = getX(e);
                        var _pv = parseInt($doc("splitDiv").style.left)+ now_x - begin_x;
                        $doc("splitDiv").style.left = _pv +"px";
                         begin_x = now_x;
                }else{
                        $doc("leftShow").style.width = $doc("splitDiv").style.left;
                        document.body.removeChild($doc("shield"));
                        document.body.removeChild($doc("splitDiv"));
                        // 調(diào)整頁面布局
                        resizePage();
                }
            }catch(e){}
        }

        document.onmouseup = function(){
            try{
                if(drag_flag){
                    //設(shè)定拖動(dòng)條的位置（設(shè)定左側(cè)的寬度）
                    $doc("leftShow").style.width = $doc("splitDiv").style.left;
                    document.body.removeChild($doc("shield"));
                    document.body.removeChild($doc("splitDiv"));
                    // 調(diào)整頁面布局
                    resizePage();
                }
                drag_flag = false;
                begin_x = null;
            }catch(e){}
        }

    }

    if(window.attachEvent){
          window.attachEvent("onload",function(){resizePage();});
          window.attachEvent("onresize",function(){resizePage();});
    }
  if(window.addEventListener){
       window.addEventListener("load",function(){resizePage();},true);
       window.addEventListener("resize",function(){resizePage();},true);
  }

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