/************
function hidestart() {
document.getElementById('topic1_detail').style.display='none';
document.images['topic1_image'].src='../images/down.gif';
document.getElementById('topic2_detail').style.display='none';
document.images['topic2_image'].src='../images/down.gif';
document.getElementById('topic3_detail').style.display='none';
document.images['topic3_image'].src='../images/down.gif';
document.getElementById('topic4_detail').style.display='none';
document.images['topic4_image'].src='../images/down.gif';
document.getElementById('topic5_detail').style.display='none';
document.images['topic5_image'].src='../images/down.gif';
}
************/

function showhide(detail,img) {
if (document.getElementById(detail).style.display==''){
document.getElementById(detail).style.display='none';
document.images[img].src='../images/down.gif';}
else if (document.getElementById(detail).style.display=='none'){
document.getElementById(detail).style.display='';
document.images[img].src='../images/up.gif';
}
}