var bJava = ( document.images );
if ( bJava )

{
iscservicesnavOff = new Image();
iscservicesnavOff.src = "images/iscservicesnav.gif";

iscservicesnavOn = new Image();
iscservicesnavOn.src = "images/iscservicesnav_on.gif";




educatorsrollnavOff = new Image();
educatorsrollnavOff.src = "images/nav/educatorsrollnav.gif";

educatorsrollnavOn = new Image();
educatorsrollnavOn.src = "images/nav/educatorsrollnav_on.gif";


publishersrollnavOff = new Image();
publishersrollnavOff.src = "images/nav/publishersrollnav.gif";

publishersrollnavOn = new Image();
publishersrollnavOn.src = "images/nav/publishersrollnav_on.gif";


policymakersrollnavOff = new Image();
policymakersrollnavOff.src = "images/nav/policymakersrollnav.gif";

policymakersrollnavOn = new Image();
policymakersrollnavOn.src = "images/nav/policymakersrollnav_on.gif";


communityrollnavOff = new Image();
communityrollnavOff.src = "images/nav/communityrollnav.gif";

communityrollnavOn = new Image();
communityrollnavOn.src = "images/nav/communityrollnav_on.gif";


workshopsrollnavOff = new Image();
workshopsrollnavOff.src = "images/nav/workshopsrollnav.gif";

workshopsrollnavOn = new Image();
workshopsrollnavOn.src = "images/nav/workshopsrollnav_on.gif";


whatotherssayrollnavOff = new Image();
whatotherssayrollnavOff.src = "images/nav/whatotherssayrollnav.gif";

whatotherssayrollnavOn = new Image();
whatotherssayrollnavOn.src = "images/nav/whatotherssayrollnav_on.gif";





edmaterialsnavOff = new Image();
edmaterialsnavOff.src = "images/edmaterialsnav.gif";

edmaterialsnavOn = new Image();
edmaterialsnavOn.src = "images/edmaterialsnav_on.gif";


factsheetsrollnavOff = new Image();
factsheetsrollnavOff.src = "images/nav/factsheetsrollnav.gif";

factsheetsrollnavOn = new Image();
factsheetsrollnavOn.src = "images/nav/factsheetsrollnav_on.gif";

curricularollnavOff = new Image();
curricularollnavOff.src = "images/nav/curricularollnav.gif";

curricularollnavOn = new Image();
curricularollnavOn.src = "images/nav/curricularollnav_on.gif";


primarysourcedocsrollnavOff = new Image();
primarysourcedocsrollnavOff.src = "images/nav/primarysourcedocsrollnav.gif";

primarysourcedocsrollnavOn = new Image();
primarysourcedocsrollnavOn.src = "images/nav/primarysourcedocsrollnav_on.gif";

keymapsrollnavOff = new Image();
keymapsrollnavOff.src = "images/nav/keymapsrollnav.gif";

keymapsrollnavOn = new Image();
keymapsrollnavOn.src = "images/nav/keymapsrollnav_on.gif";




religionpubschoolsnavOff = new Image();
religionpubschoolsnavOff.src = "images/religionpubschoolsnav.gif";

religionpubschoolsnavOn = new Image();
religionpubschoolsnavOn.src = "images/religionpubschoolsnav_on.gif";



teachingaboutreligionrollnavOff = new Image();
teachingaboutreligionrollnavOff.src = "images/nav/teachingaboutreligionrollnav.gif";

teachingaboutreligionrollnavOn = new Image();
teachingaboutreligionrollnavOn.src = "images/nav/teachingaboutreligionrollnav_on.gif";


backgroundonjewishobsrollnavOff = new Image();
backgroundonjewishobsrollnavOff.src = "images/nav/backgroundonjewishobsrollnav.gif";

backgroundonjewishobsrollnavOn = new Image();
backgroundonjewishobsrollnavOn.src = "images/nav/backgroundonjewishobsrollnav_on.gif";







recreadingnavOff = new Image();
recreadingnavOff.src = "images/recreadingnav.gif";

recreadingnavOn = new Image();
recreadingnavOn.src = "images/recreadingnav_on.gif";



addrecresourcesrollnavOff = new Image();
addrecresourcesrollnavOff.src = "images/nav/addrecresourcesrollnav.gif";

addrecresourcesrollnavOn = new Image();
addrecresourcesrollnavOn.src = "images/nav/addrecresourcesrollnav_on.gif";


externallinksrollnavOff = new Image();
externallinksrollnavOff.src = "images/nav/externallinksrollnav.gif";

externallinksrollnavOn = new Image();
externallinksrollnavOn.src = "images/nav/externallinksrollnav_on.gif";


literaturerecsrollnavOff = new Image();
literaturerecsrollnavOff.src = "images/nav/literaturerecsrollnav.gif";

literaturerecsrollnavOn = new Image();
literaturerecsrollnavOn.src = "images/nav/literaturerecsrollnav_on.gif";




supporticsnavOff = new Image();
supporticsnavOff.src = "images/supporticsnav.gif";

supporticsnavOn = new Image();
supporticsnavOn.src = "images/supporticsnav_on.gif";

contactusnavOff = new Image();
contactusnavOff.src = "images/contactusnav.gif";

contactusnavOn = new Image();
contactusnavOn.src = "images/contactusnav_on.gif";




educatorsnavOff = new Image();
educatorsnavOff.src = "images/contentnav/educatorsnav.gif";

educatorsnavOn = new Image();
educatorsnavOn.src = "images/contentnav/educatorsnav_on.gif";


publishersnavOff = new Image();
publishersnavOff.src = "images/contentnav/publishersnav.gif";

publishersnavOn = new Image();
publishersnavOn.src = "images/contentnav/publishersnav_on.gif";


policymakersnavOff = new Image();
policymakersnavOff.src = "images/contentnav/policymakersnav.gif";

policymakersnavOn = new Image();
policymakersnavOn.src = "images/contentnav/policymakersnav_on.gif";




workshopsnavOff = new Image();
workshopsnavOff.src = "images/contentnav/workshopsnav.gif";

workshopsnavOn = new Image();
workshopsnavOn.src = "images/contentnav/workshopsnav_on.gif";


communitynavOff = new Image();
communitynavOff.src = "images/contentnav/communitynav.gif";

communitynavOn = new Image();
communitynavOn.src = "images/contentnav/communitynav_on.gif";

studentsnavOff = new Image();
studentsnavOff.src = "images/contentnav/studentsnav.gif";

studentsnavOn = new Image();
studentsnavOn.src = "images/contentnav/studentsnav_on.gif";

whatotherssaynavOff = new Image();
whatotherssaynavOff.src = "images/contentnav/whatotherssaynav.gif";

whatotherssaynavOn = new Image();
whatotherssaynavOn.src = "images/contentnav/whatotherssaynav_on.gif";


readingnavOff = new Image();
readingnavOff.src = "images/contentnav/readingnav.gif";

readingnavOn = new Image();
readingnavOn.src = "images/contentnav/readingnav_on.gif";


externallinksnavOff = new Image();
externallinksnavOff.src = "images/contentnav/externallinksnav.gif";

externallinksnavOn = new Image();
externallinksnavOn.src = "images/contentnav/externallinksnav_on.gif";


literaturerecsnavOff = new Image();
literaturerecsnavOff.src = "images/contentnav/literaturerecsnav.gif";

literaturerecsnavOn = new Image();
literaturerecsnavOn.src = "images/contentnav/literaturerecsnav_on.gif";


addrecreadingnavOff = new Image();
addrecreadingnavOff.src = "images/contentnav/recreadingnav.gif";

addrecreadingnavOn = new Image();
addrecreadingnavOn.src = "images/contentnav/recreadingnav_on.gif";



factsheetsnavOff = new Image();
factsheetsnavOff.src = "images/contentnav/factsheetsnav.gif";

factsheetsnavOn = new Image();
factsheetsnavOn.src = "images/contentnav/factsheetsnav_on.gif";

curriculanavOff = new Image();
curriculanavOff.src = "images/contentnav/curriculanav.gif";

curriculanavOn = new Image();
curriculanavOn.src = "images/contentnav/curriculanav_on.gif";


primarysourcedocsnavOff = new Image();
primarysourcedocsnavOff.src = "images/contentnav/primarysourcedocsnav.gif";

primarysourcedocsnavOn = new Image();
primarysourcedocsnavOn.src = "images/contentnav/primarysourcedocsnav_on.gif";

keymapsnavOff = new Image();
keymapsnavOff.src = "images/contentnav/keymapsnav.gif";

keymapsnavOn = new Image();
keymapsnavOn.src = "images/contentnav/keymapsnav_on.gif";


holidayspubschoolsnavOff = new Image();
holidayspubschoolsnavOff.src = "images/contentnav/holidayspubschoolsnav.gif";

holidayspubschoolsnavOn = new Image();
holidayspubschoolsnavOn.src = "images/contentnav/holidayspubschoolsnav_on.gif";

activitiespubschoolsnavOff = new Image();
activitiespubschoolsnavOff.src = "images/contentnav/activitiespubschoolsnav.gif";

activitiespubschoolsnavOn = new Image();
activitiespubschoolsnavOn.src = "images/contentnav/activitiespubschoolsnav_on.gif";


guidejewishobservnavOff = new Image();
guidejewishobservnavOff.src = "images/contentnav/guidejewishobservnav.gif";

guidejewishobservnavOn = new Image();
guidejewishobservnavOn.src = "images/contentnav/guidejewishobservnav_on.gif";



teachrelpubschnavOff = new Image();
teachrelpubschnavOff.src = "images/contentnav/teachrelpubschnav.gif";

teachrelpubschnavOn = new Image();
teachrelpubschnavOn.src = "images/contentnav/teachrelpubschnav_on.gif";


guidejewishholidaysnavOff = new Image();
guidejewishholidaysnavOff.src = "images/contentnav/guidejewishholidaysnav.gif";

guidejewishholidaysnavOn = new Image();
guidejewishholidaysnavOn.src = "images/contentnav/guidejewishholidaysnav_on.gif";

letterjcrcnavOff = new Image();
letterjcrcnavOff.src = "images/contentnav/letterjcrcnav.gif";

letterjcrcnavOn = new Image();
letterjcrcnavOn.src = "images/contentnav/letterjcrcnav_on.gif";


lettermarinnavOff = new Image();
lettermarinnavOff.src = "images/contentnav/lettermarinnav.gif";

lettermarinnavOn = new Image();
lettermarinnavOn.src = "images/contentnav/lettermarinnav_on.gif";

sevenyearcalendarnavOff = new Image();
sevenyearcalendarnavOff.src = "images/contentnav/sevenyearcalendarnav.gif";

sevenyearcalendarnavOn = new Image();
sevenyearcalendarnavOn.src = "images/contentnav/sevenyearcalendarnav_on.gif";

jewholidaycalendarnavOff = new Image();
jewholidaycalendarnavOff.src = "images/contentnav/jewholidaycalendarnav.gif";

jewholidaycalendarnavOn = new Image();
jewholidaycalendarnavOn.src = "images/contentnav/jewholidaycalendarnav_on.gif";

}

function On( imgName) 
{	
	img = eval( imgName + "On.src");
	document[imgName].src = img;  
	
	layerName = imgName + "layer";
	showLayer( layerName, true, 0 );
}
 
function Off( imgName) 
{
	img = eval( imgName + "Off.src");
	document[imgName].src = img; 
	
	layerName = imgName + "layer";
	showLayer( layerName, false, 500 );
}
 
var dhtml;
 
function layerObj(name)
{
  if (document.getElementById)
  {
  	try{
    	this.obj   = document.getElementById(name);
		this.style = document.getElementById(name).style;
	} 
	catch( e ){
		this.val(null);
	}
  }
  else if (document.all)
  {
  	try{
    	this.obj   = document.all[name];
		this.style = document.all[name].style;
  	}
  	catch(e){
  		this.val(null);
  	}
  }
  else if (document.layers)
  {
  	try{
   		this.obj   = document.layers[name];
   		this.style = document.layers[name].style;
  	}
  	catch(e){
  		this.val(null);
  	}
  }
}
 
var activeLayer = "";
 
function turnOffOtherLayers( name )
{	
	if (activeLayer == "" ) return;	
	showLayerImmidiate( activeLayer, false );
	activeLayer = "";
}
 
 
function showLayerImmidiate( name, visible )
{	
	if ( visible )	turnOffOtherLayers( name );
 
	var f = new layerObj( name );		
	
	if ( f == null ){
	   return;
	}
	
	f.style.visibility = visible? "visible":"hidden";
	
	if ( visible ){
		activeLayer = name;
	}
}
 
var layerVisibilityTimer = null;
 
function showLayer( name, visible, delay )
{	
	clearTimeout( layerVisibilityTimer );
 
	if ( delay )
	{	
		layerVisibilityTimer = setTimeout("showLayerImmidiate('"+name+"',"+visible+")", delay);
	}
	else
	{
		showLayerImmidiate( name, visible );
	}
}