// Code may not be used without permission of NJM Gallery
// lkupersmith@njmgallery.com
// Modified Nov. 7, 2006


// findObj needed for showHideLayers
function findObj(theObj, theDoc)
{
  var p, i, foundObj;
  
  if(!theDoc) {theDoc = document;}
  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)
  {
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if(!(foundObj = theDoc[theObj]) && theDoc.all) {
	  foundObj = theDoc.all[theObj];
	  }
  for (i=0; !foundObj && i < theDoc.forms.length; i++)  {
    foundObj = theDoc.forms[i][theObj];
  }
  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++)  {
    foundObj = findObj(theObj,theDoc.layers[i].document);
  }
  if(!foundObj && document.getElementById) {
	  foundObj = document.getElementById(theObj);
  }
  
  return foundObj;
}
// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');
function showHideLayers()
{ 
  var i, visStr, obj, args = showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findObj(args[i])) !== null)
    {
      visStr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visStr == 'show') {
			visStr = 'visible';
		}
        else if(visStr == 'hide') {
			visStr = 'hidden';
		}
      }
      obj.visibility = visStr;
    }
  }
}