function onabout01()
{
	about01.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	about02.style.backgroundImage = "url()";
	about03.style.backgroundImage = "url()";
	about04.style.backgroundImage = "url()";
	
	aboutshow01.style.display="";
	aboutshow02.style.display="none"
	aboutshow03.style.display="none"
	aboutshow04.style.display="none"
	
}

function onabout02()
{
	about01.style.backgroundImage = "url()";
	about02.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	about03.style.backgroundImage = "url()";
	about04.style.backgroundImage = "url()";
	
	aboutshow01.style.display="none";
	aboutshow02.style.display=""
	aboutshow03.style.display="none"
	aboutshow04.style.display="none"
	
}

function onabout03()
{
	about01.style.backgroundImage = "url()";
	about02.style.backgroundImage = "url()";
	about03.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	about04.style.backgroundImage = "url()";
	
	aboutshow01.style.display="none";
	aboutshow02.style.display="none"
	aboutshow03.style.display=""
	aboutshow04.style.display="none"
	
}

function onabout04()
{
	about01.style.backgroundImage = "url()";
	about02.style.backgroundImage = "url()";
	about03.style.backgroundImage = "url()";
	about04.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	
	aboutshow01.style.display="none";
	aboutshow02.style.display="none"
	aboutshow03.style.display="none"
	aboutshow04.style.display=""
	
}

function onnews01()
{
	news01.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	news02.style.backgroundImage = "url()";
	news03.style.backgroundImage = "url()";
	news04.style.backgroundImage = "url()";
	
	newsshow01.style.display="";
	newsshow02.style.display="none";
	newsshow03.style.display="none";
	newsshow04.style.display="none";
}

function onnews02()
{
	news01.style.backgroundImage = "url()";
	news02.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	news03.style.backgroundImage = "url()";
	news04.style.backgroundImage = "url()";
	
	newsshow01.style.display="none";
	newsshow02.style.display="";
	newsshow03.style.display="none";
	newsshow04.style.display="none";
}

function onnews03()
{
	news01.style.backgroundImage = "url()";
	news02.style.backgroundImage = "url()";
	news03.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	news04.style.backgroundImage = "url()";
	
	newsshow01.style.display="none";
	newsshow02.style.display="none";
	newsshow03.style.display="";
	newsshow04.style.display="none";
}

function onnews04()
{
	news01.style.backgroundImage = "url()";
	news02.style.backgroundImage = "url()";
	news03.style.backgroundImage = "url()";
	news04.style.backgroundImage = "url(/wwwdoc/images/select_bj.gif)";
	
	newsshow01.style.display="none";
	newsshow02.style.display="none";
	newsshow03.style.display="none";
	newsshow04.style.display="";
}