<!--
function toggleLayer( whichLayer )
{
  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';
}


function m_tog(imgId,layId) {
   var imgEl = document.getElementById(imgId);
 
   if(imgEl) {
      imgEl.src = '//flydepot.com/flyfishing/images/ico_' + (new String(imgEl.src).indexOf('ico_expand') != -1 ? 'colapse' : 'expand') + '.gif';
   }
}
-->