function trim(s)
    {
        if (s == null) return "";
        var i;
        //删除前导空格
        for (i=0;i<s.length;i++){
          if (s.charAt(i) != " ") break;
        }
        s = s.substring(i,s.length);
        //删除结尾空格
        for (i=s.length-1;i>=0;i--){
          if (s.charAt(i) != " ") break;
		}
        s = s.substring(0,i+1);
        if (s == null) s = "";
          return s;
    }      
    function DataCheck()
    {
        var user_ajax=trim(document.all.user_s.value);      
        if (user_ajax.length == 0)
  	    {
  		    alert("请填写用户名");
  		    document.all.user_s.focus();
  		    return false;
        }
		for (i=0;i<user_ajax.length;i++)
	    {
	        if (user_ajax.charAt(i)=="'")
	        {
  		        alert("用户名不可能含有 \" ' \" 符号!");
	  	        document.all.user_s.focus();
  	            return false;
		    }
	    }
        var pwd_ajax=document.all.pwd_s.value;	   
        if (pwd_ajax.length == 0) 
        {
  		    alert("请填写用户密码");
  		    document.all.pwd_s.focus();
  		    return false;
        }
		for (i=0;i<pwd_ajax.length;i++)
		{
	        if (pwd_ajax.charAt(i)=="'")
	        {
  		        alert("密码不可能含有 \" ' \" 符号!");
	  	        document.all.pwd_s.focus();
  	            return false;
		    }
	    }    
        var obj=cx_user.GetEmpByDeptID(user_ajax);                               
        if(obj.value!=null)
        { 
            var ds=obj.value;
            if(ds != null && typeof(ds) == "object" && ds.Tables != null)
            {　           　            
		        if(ds.Tables[0].Rows.length>0)
			    { 	                                
                    if(ds.Tables[0].Rows[0].userpwd != pwd_ajax)
                    {
                        alert("密码不正确。");
                        document.all.pwd_s.focus();
  		                return false;
                    } 
                    document.all.names.value = trim(ds.Tables[0].Rows[0].users) + ds.Tables[0].Rows[0].glxm + ds.Tables[0].Rows[0].tname;                  
                    document.all("Button1").click();                                                  
		    	}
			    else
			    {
			        alert("找不到“"+user_ajax+"”这一系统管理用户。");
                    document.all.user_s.focus();
			        return false;			    
			    }
			}
        }             
    }
    function ok()
    {  
        document.all.user_s.value='';         
        document.all.pwd_s.value='';         
        if(opener)
        { 
            if(opener.closed == false)
            { 
                window.opener.opener=null;         
                window.opener.open("","_self");        
                window.opener.close(); 
            }
        }
        window.location="htgl/ym_tz.aspx?name=" + document.all.names.value;      
    }