function toggleLayer( whichLayer )
{
  resetToggle();
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
  document.getElementById('a_'+whichLayer).style.background='#000000';
}

function resetToggle() {
	var e = document.getElementById('product_description');
	e.style.display = 'none';
	document.getElementById('a_product_description').style.background='#888888';
	var e = document.getElementById('standard');
	e.style.display = 'none';
	document.getElementById('a_standard').style.background='#888888';
	var e = document.getElementById('specifications');
	e.style.display = 'none';
	document.getElementById('a_specifications').style.background='#888888';
	var e = document.getElementById('warranty');
	e.style.display = 'none';
	document.getElementById('a_warranty').style.background='#888888';
}

function showonlyone(thechosenone) {
      var newboxes = document.getElementsByTagName("div");
            for(var x=0; x<newboxes.length; x++) {
                  name = newboxes[x].getAttribute("name");
                  if (name == 'newboxes') {
                        if (newboxes[x].id == thechosenone) {
                        newboxes[x].style.display = 'block';
                  }
                  else {
                        newboxes[x].style.display = 'none';
                  }
            }
      }
}