var helenMarxOn = new Image();
helenMarxOn.src = 'images/helenMarxSubLogoOn.gif';

var helenMarxOff = new Image();
helenMarxOff.src = 'images/helenMarxSubLogo.gif';

var TPPImageOn = new Image();
TPPImageOn.src = 'images/turtlePointPressSubLogoOn.gif';

var TPPImageOff = new Image();
TPPImageOff.src = 'images/turtlePointPressSubLogo.gif';

function helenOff(){

document.getElementById('helenMarxLogo').src = helenMarxOff.src;

}

function helenOn(){

document.getElementById('helenMarxLogo').src = helenMarxOn.src;

}

function TPPOff(){

document.getElementById('TPPLogo').src = TPPImageOff.src;

}

function TPPOn(){

document.getElementById('TPPLogo').src = TPPImageOn.src;

}



var timer = setTimeout('hideAll()',1000);

function showCatalogSubNav(){

	clearTimeout(timer);
	
	hideAll();
	document.getElementById('catalogSubNav').style.visibility = 'visible';
}

function showAboutSubNav(){
	clearTimeout(timer);
	hideAll();
	document.getElementById('aboutSubNav').style.visibility = 'visible';
}

function hideAll(){

	document.getElementById('catalogSubNav').style.visibility = 'hidden';
	document.getElementById('aboutSubNav').style.visibility = 'hidden';

}

function setTimer(){

	timer = setTimeout('hideAll()',1000);
	
}