chatMsg = filterChatMsg(chatMsg);
            var msgObj ={
                    msg:chatMsg,
                    userId:'ac_'+AgentObj.agentId
                }
            var centertab = Ext.getCmp("center_id");
            if(currentWin.indexOf("c_")!==0){
                alert("非會話窗口！");
                return  false;
            }
            if(chatMsg==""||chatMsg==null){
                alert("請輸入內(nèi)容！");
                return false;
            }
            if(chatMsg.length>500){
                alert(chatMsg.length);//這里是彈出的?。。。。。?                alert("請輸入小于500字符！");
                return false;
            }