// Example: obj = findObj("image1");

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;

}

var currentSection = "";

function highlightCurrentSection(section)
{
	//possible section values
	//	facility
	//	mission
	//	physicians
	//	staff
	//	services
	//	preprocedure
	//	forms
	currentSection = section;
	//var currentNav = findObj("nav_" + section);
	//currentNav.className = "current";
	var arrowLayer = findObj("arrow_" + section);
	showHideLayers("arrow_" + section,'','show'); //,Layer2,'','hide');
}

function showArrow(section)
{
	showHideLayers("arrow_" + section,'','show')
}

function hideArrow(section)
{
	if (section != currentSection)
	{
		showHideLayers("arrow_" + section,'','hide')
	}
}

// * Dependencies * 

// this function requires the following snippets:

// JavaScript/readable_MM_functions/findObj

//

// Accepts a variable number of arguments, in triplets as follows:

// arg 1: simple name of a layer object, such as "Layer1"

// arg 2: ignored (for backward compatibility)

// arg 3: 'hide' or 'show'

// repeat...

//

// 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;

    }

  }

}