function hytj_yc1()
{
document.getElementById('hytj_yc2').style.display='none';
document.getElementById('hytj_yc3').style.display='none';
document.getElementById('hytj_yc1').style.display='block';
document.getElementById('hytj_bg1').style.background='url(images/c12.jpg)';
document.getElementById('hytj_bg2').style.background='url(images/c13.jpg)';
document.getElementById('hytj_bg3').style.background='url(images/c13.jpg)';
document.getElementById('hytj_ys1').style.color='white';
document.getElementById('hytj_ys2').style.color='black';
document.getElementById('hytj_ys3').style.color='black';
}
function hytj_yc2()
{
document.getElementById('hytj_yc1').style.display='none';
document.getElementById('hytj_yc3').style.display='none';
document.getElementById('hytj_yc2').style.display='block';
document.getElementById('hytj_bg1').style.background='url(images/c13.jpg)';
document.getElementById('hytj_bg2').style.background='url(images/c12.jpg)';
document.getElementById('hytj_bg3').style.background='url(images/c13.jpg)';
document.getElementById('hytj_ys1').style.color='black';
document.getElementById('hytj_ys2').style.color='white';
document.getElementById('hytj_ys3').style.color='black';
}
function hytj_yc3()
{
document.getElementById('hytj_yc1').style.display='none';
document.getElementById('hytj_yc2').style.display='none';
document.getElementById('hytj_yc3').style.display='block';
document.getElementById('hytj_bg1').style.background='url(images/c13.jpg)';
document.getElementById('hytj_bg2').style.background='url(images/c13.jpg)';
document.getElementById('hytj_bg3').style.background='url(images/c12.jpg)';
document.getElementById('hytj_ys1').style.color='black';
document.getElementById('hytj_ys2').style.color='black';
document.getElementById('hytj_ys3').style.color='white';
}

function sjfl_yc1()
{
document.getElementById('sjfl_yc1').style.display='block';
document.getElementById('sjfl_yc2').style.display='none';
document.getElementById('sjfl_yc3').style.display='none';
document.getElementById('sjfl_yc4').style.display='none';
document.getElementById('sjfl_yc5').style.display='none';
document.getElementById('sjfl_bg1').style.background='url(images/c19.gif)';
document.getElementById('sjfl_bg2').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg3').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg4').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg5').style.background='url(images/c18.gif)';
}

function sjfl_yc2()
{
document.getElementById('sjfl_yc1').style.display='none';
document.getElementById('sjfl_yc2').style.display='block';
document.getElementById('sjfl_yc3').style.display='none';
document.getElementById('sjfl_yc4').style.display='none';
document.getElementById('sjfl_yc5').style.display='none';
document.getElementById('sjfl_bg1').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg2').style.background='url(images/c19.gif)';
document.getElementById('sjfl_bg3').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg4').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg5').style.background='url(images/c18.gif)';
}

function sjfl_yc3()
{
document.getElementById('sjfl_yc1').style.display='none';
document.getElementById('sjfl_yc2').style.display='none';
document.getElementById('sjfl_yc3').style.display='block';
document.getElementById('sjfl_yc4').style.display='none';
document.getElementById('sjfl_yc5').style.display='none';
document.getElementById('sjfl_bg1').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg2').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg3').style.background='url(images/c19.gif)';
document.getElementById('sjfl_bg4').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg5').style.background='url(images/c18.gif)';
}

function sjfl_yc4()
{
document.getElementById('sjfl_yc1').style.display='none';
document.getElementById('sjfl_yc2').style.display='none';
document.getElementById('sjfl_yc3').style.display='none';
document.getElementById('sjfl_yc4').style.display='block';
document.getElementById('sjfl_yc5').style.display='none';
document.getElementById('sjfl_bg1').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg2').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg3').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg4').style.background='url(images/c19.gif)';
document.getElementById('sjfl_bg5').style.background='url(images/c18.gif)';
}

function sjfl_yc5()
{
document.getElementById('sjfl_yc1').style.display='none';
document.getElementById('sjfl_yc2').style.display='none';
document.getElementById('sjfl_yc3').style.display='none';
document.getElementById('sjfl_yc4').style.display='none';
document.getElementById('sjfl_yc5').style.display='block';
document.getElementById('sjfl_bg1').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg2').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg3').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg4').style.background='url(images/c18.gif)';
document.getElementById('sjfl_bg5').style.background='url(images/c19.gif)';
}