function exp_coll(ind)
	{
	 s = document.getElementById("sp_" + ind);
	 i = document.getElementById("im_" + ind);
	 i2 = document.getElementById("im2_" + ind);
	
	 if (s.style.display == 'none')
	 {
	   s.style.display = 'block';
	   i.src = "images/minus.gif";
	   i2.src = "images/openfolder.gif";
	 }
	 else if (s.style.display == 'block')
	 {
	   s.style.display = 'none';
	   i.src = "images/plus.gif";
	   i2.src = "images/closedfolder.gif";
	 }
	}

function coll_all(cnt)
	{
	for( i=1; i<cnt; i++ ) {
		x = document.getElementById("sp_" + i);
		if(x!=null) {
			x.style.display = 'none';
			if (x.style.display == 'none')
				{
				document.getElementById("im_" + i).src = "images/plus.gif";
				document.getElementById("im2_" + i).src = "images/closedfolder.gif";
				}
			}
		}
	}


function exp_all(cnt)
	{
		for( i=1; i<cnt ;i++ ) {
			x = document.getElementById("sp_" + i);
			if(x!=null) {
				x.style.display = 'block';
				if (x.style.display == 'block')
				{
				document.getElementById("im_" + i).src = "images/minus.gif";
				document.getElementById("im2_" + i).src = "images/openfolder.gif";
				}
			}
		}
	}