function swap_c1(n,cid,bg1,bg2){
	var curC=document.getElementById(cid+"_1");
	var curB=document.getElementById(cid+"_b1");
	var curC_a=document.getElementById(cid+"_1_a");
	var curB_a=document.getElementById(cid+"_b1_a");
	var curC_n=document.getElementById(cid+"_1_n");
	var curB_n=document.getElementById(cid+"_b1_n");

	if(n==1){
		curC_n.style.display="block";
		curB_n.style.display="none";
		curC_a.className="t_titlew";
		curB_a.className="t_title";
		curC.background=bg1;
		curB.background=bg2;
	}else{
		curC_n.style.display="none";
		curB_n.style.display="block";
		curC_a.className="t_title";
		curB_a.className="t_titlew";
		curC.background=bg2;
		curB.background=bg1;	
	}

}

function swap_c2(n,cid){
	for(var i=1;i<=3;i++){
		var curA=document.getElementById(cid+"_t"+i);
		var curB=document.getElementById(cid+"_"+i);
		var curC=document.getElementById(cid+"_b"+i);
		if(n==i){
			curC.style.display="block";
			curA.className="t_title"
			curB.className="T_news_bt2"
			curB.background="/img/pic/l_1_bg9.jpg";
			
		}else{
			
			curC.style.display="none";
			curA.className="t_titlew"
			curB.className="T_news_bt2_w";
			curB.background="";
			
		}
	}
}


function swap_c3(n,cid){
	for(var i=1;i<=4;i++){
		var curB=document.getElementById(cid+"_"+i);
		var curC=document.getElementById(cid+"_b"+i);
		if(n==i){
			curC.style.display="block";
			curB.background="/img/pic/l_1_bg6.jpg";
			
		}else{
			
			curC.style.display="none";
			curB.background="";
			
		}
	}
}