var curSelectStr = "game_introduce_span";//当前被选中的对象名称
function change_game_intro(intro_id){
	if(intro_id == 'game_introduce'){
		curSelectStr = "game_introduce_span";
		document.getElementById(intro_id).style.display='block';
		document.getElementById('game_rule').style.display='none';
		document.getElementById('game_scoring').style.display='none';
		document.getElementById('game_introduce_span').style.color="#196ba4";
		document.getElementById('game_rule_span').style.color="#9a2000";
		document.getElementById('game_scoring_span').style.color="#9a2000";
	}else if(intro_id == 'game_rule'){
		curSelectStr = "game_rule_span";
		document.getElementById(intro_id).style.display='block';
		document.getElementById('game_introduce').style.display='none';
		document.getElementById('game_scoring').style.display='none';
		document.getElementById('game_introduce_span').style.color="#9a2000";
		document.getElementById('game_rule_span').style.color="#196ba4";
		document.getElementById('game_scoring_span').style.color="#9a2000";
	}else if(intro_id == 'game_scoring'){
		curSelectStr = "game_scoring_span";
		document.getElementById(intro_id).style.display='block';
		document.getElementById('game_introduce').style.display='none';
		document.getElementById('game_rule').style.display='none';
		document.getElementById('game_introduce_span').style.color="#9a2000";
		document.getElementById('game_rule_span').style.color="#9a2000";
		document.getElementById('game_scoring_span').style.color="#196ba4";
	}
}
function judgeFontColor(strObj){
	if(strObj != curSelectStr){
		document.getElementById(strObj).style.color = "#9a2000";
	}else{
		document.getElementById(strObj).style.color = "#196ba4";
	}
}