function changeNews(buttonleft,button,buttonright,content,number){
 var i=0;
 var buttonleftpieces = document.getElementsByName(buttonleft);
 var buttonpieces = document.getElementsByName(button);
 var buttonrightpieces = document.getElementsByName(buttonright);
 var contentpieces = document.getElementsByName(content);
	for(i=0;i<buttonpieces.length;i++){
 	buttonleftpieces[i].src="images/index_pic_tc01.gif";
	buttonrightpieces[i].src="images/index_pic_tc02.gif";
	buttonpieces[i].background="images/index_pic_tcbg01.gif";
	buttonpieces[i].className="cn14";
	contentpieces[i].style.display="none";
	}
 buttonleftpieces[number-1].src="images/index_pic_tc03.gif";
 buttonrightpieces[number-1].src="images/index_pic_tc04.gif";
 buttonpieces[number-1].background="images/index_pic_tcbg02.gif";
 buttonpieces[number-1].className="cn24";
 contentpieces[number-1].style.display="block";
}

function changeInfo(button,buttonlink,content,number){
 var i=0;
 var buttonpieces = document.getElementsByName(button);
 var buttonlinkpieces = document.getElementsByName(buttonlink);
 var contentpieces = document.getElementsByName(content);
	for(i=0;i<buttonpieces.length;i++){
	buttonpieces[i].background="images/sy_pic_tcbg02.gif";
	buttonlinkpieces[i].className="cn7";
	contentpieces[i].style.display="none";
	}
 buttonpieces[number-1].background="images/sy_pic_tcbg01.gif";
 buttonlinkpieces[number-1].className="cn6";
 contentpieces[number-1].style.display="block";
}

function changeInfo1(button,buttonlink,content,number){
 var i=0;
 var buttonpieces = document.getElementsByName(button);
 var buttonlinkpieces = document.getElementsByName(buttonlink);
 var contentpieces = document.getElementsByName(content);
	for(i=0;i<buttonpieces.length;i++){
	buttonpieces[i].bgcolor="ececec";
	buttonpieces[i].background="";
	contentpieces[i].style.display="none";
	}
 buttonpieces[number-1].background="images/sy_pie_tcbg03.gif";
 buttonlinkpieces[number-1].className="cn8";
 contentpieces[number-1].style.display="block";
}

function changeInfo2(buttonlink,content,number){
 var i=0;
 var buttonlinkpieces = document.getElementsByName(buttonlink);
 var contentpieces = document.getElementsByName(content);
	for(i=0;i<buttonlinkpieces.length;i++){
	buttonlinkpieces[i].className="cn7";
	contentpieces[i].style.display="none";
	}
 buttonlinkpieces[number-1].className="table4";
 contentpieces[number-1].style.display="block";
}

function changeLink(buttonleft,button,buttonright,linklink,content,number){
 var i=0;
 var buttonleftpieces = document.getElementsByName(buttonleft);
 var buttonpieces = document.getElementsByName(button);
 var buttonrightpieces = document.getElementsByName(buttonright);
 var linkpieces = document.getElementsByName(linklink);
 var contentpieces = document.getElementsByName(content);
	for(i=0;i<buttonpieces.length;i++){
 	buttonleftpieces[i].src="images/index_pic_tc07.jpg";
	buttonrightpieces[i].src="images/index_pic_tc08.jpg";
	buttonpieces[i].background="images/index_pic_tcbg07.jpg";
	linkpieces[i].className="cn23";
	contentpieces[i].style.display="none";
	}
 buttonleftpieces[number-1].src="images/index_pic_tc05.jpg";
 buttonrightpieces[number-1].src="images/index_pic_tc06.jpg";
 buttonpieces[number-1].background="images/index_pic_tcbg06.jpg";
 linkpieces[number-1].className="cn22";
 contentpieces[number-1].style.display="block";
}