function csh(w)
{
a="dd"+w;
b=document.getElementById(a);
c=b.style.display;
if (c=="none") {
	b.style.display="";
	a="im"+w;
	b=document.getElementById(a);
	b.src="/new/images/minus.gif";
	}
else {
	b.style.display="none";
	a="im"+w;
	b=document.getElementById(a);
	b.src="/new/images/plus.gif";
	}
}