function show_hide(the_id)
{
	var parentTd = document.getElementById('divContent');
	var childDivs = parentTd.getElementsByTagName('div');
	var obj = MM_findObj(the_id);
	
	for (var i=0; i < childDivs.length; i++ )
	{
		var newObj = MM_findObj(childDivs[i].id);
		newObj.style.visibility = "hidden";
		newObj.style.display = "none";
	}
	
	obj.style.visibility = "visible";
	obj.style.display = "block";
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}