function showall(id)
{
divid="div"+id;
imgid="img"+id;
if (document.all[divid].style.display == "none")
{
	start1=0;
	while (start1<29)
{
divid1="div"+start1;
imgid1="img"+start1;
document.all[divid1].style.display = "none";
document.all[imgid1].src="test/plus1.gif";
start1=start1+1;
}
document.all[divid].style.display = "inline";
document.all[imgid].src="test/minus1.gif";
}
else
{
document.all[divid].style.display = "none";
document.all[imgid].src="test/plus1.gif";
}
}