<!--
{
  img=new Array();
  img[0]=new Image(); img[0].src='../image/arrow_w.gif';
  img[1]=new Image(); img[1].src='../image/arrow_wd.gif';
  img[2]=new Image(); img[2].src='../image/arrow_wl.gif';
  img[3]=new Image(); img[3].src='../image/arrow_wu.gif';
}
function changeImg(imgNoA,imgNoB) {
  document.images[imgNoA].src=img[imgNoB].src;
}
function doSection(n)
{
	if (document.layers)
	{
		current = (document.layers['sec'+n].display == 'none') ? 'block' : 'none';
		document.layers['sec'+n].display = current;
	}
	else if (document.all)
	{
		current = (document.all['sec'+n].style.display == 'none') ? 'block' : 'none';
		document.all['sec'+n].style.display = current;
	}
	else if (document.getElementById)
	{
		current = (document.getElementById('sec'+n).style.display == 'none') ? 'block' : 'none';
		document.getElementById('sec'+n).style.display = current;
	}
        if (current == 'none')
        {       changeImg('arrow'+n,1)}
        else
        {       changeImg('arrow'+n,3)}
}
//-->