var greeting_on=new Image();
greeting_on.src="images/btn_greeting_a.gif";
var greeting_off=new Image();
greeting_off.src="images/btn_greeting.gif";
var summary_on=new Image();
summary_on.src="images/btn_summary_a.gif";
var summary_off=new Image();
summary_off.src="images/btn_summary.gif";
var management_on=new Image();
management_on.src="images/btn_management_a.gif";
var management_off=new Image();
management_off.src="images/btn_management.gif";
var notice_on=new Image();
notice_on.src="images/btn_notice_a.gif";
var notice_off=new Image();
notice_off.src="images/btn_notice.gif";
var leader_on=new Image();
leader_on.src="images/btn_leader_a.gif";
var leader_off=new Image();
leader_off.src="images/btn_leader.gif";
var rule_on=new Image();
rule_on.src="images/btn_rule_a.gif";
var rule_off=new Image();
rule_off.src="images/btn_rule.gif";
var rule10p_on=new Image();
rule10p_on.src="images/btn_rule10p_a.gif";
var rule10p_off=new Image();
rule10p_off.src="images/btn_rule10p.gif";
var ground_on=new Image();
ground_on.src="images/btn_ground_a.gif";
var ground_off=new Image();
ground_off.src="images/btn_ground.gif";
var team_on=new Image();
team_on.src="images/btn_team_a.gif";
var team_off=new Image();
team_off.src="images/btn_team.gif";
var uniform_on=new Image();
uniform_on.src="images/btn_uniform_a.gif";
var uniform_off=new Image();
uniform_off.src="images/btn_uniform.gif";
var schedule_on=new Image();
schedule_on.src="images/btn_schedule_a.gif";
var schedule_off=new Image();
schedule_off.src="images/btn_schedule.gif";
var result_on=new Image();
result_on.src="images/btn_result_a.gif";
var result_off=new Image();
result_off.src="images/btn_result.gif";