var b = 4
function mainOn(a){ 
	showLayerNumber(a);
	
	if (document.images) {
//	document.getElementById("menu" + b).className = 'mainNav'	
//	document.getElementById("menu" + a).className = 'mainNavOn'
	document["menu"+ b].src = eval("menu" + b + "off.src");
	document["menu" + a].src = eval("menu" + a + "on.src");
	}
	b=a;
	
	
	} 
	
	




function topNavOn(a){
	
	if (document.getElementById("tn" + a).className = 'topNavOn') {
	}
}



function topNavOff(a){
	
	if (document.getElementById("tn" + a).className = 'topNav') {
	}	
}



function showTriggers(){
	showLayer('trigger1');
	showLayer('trigger2');
	showLayer('trigger3');
	showLayer('trigger4');
	
	}
	
function showTriggersTop(){
	showLayer('trigger5');
	showLayer('trigger6');
	showLayer('trigger7');
	showLayer('trigger8');
	
	}



function mainOut() {
	mainOn(4);
	hideLayer('topLayer1');
	showLayer('topLayer2a');
	topNavOff('1');
	topNavOff('5');
	}


var keyReset = false;

function resetMain()
{
	mainOut();
	clearreset();
}
function setMain()
{
	hideLayer('trigger1');
	hideLayer('trigger2');
	hideLayer('trigger3');
	hideLayer('trigger4');
	hideLayer('trigger5');
	hideLayer('trigger6');
	hideLayer('trigger7');
	hideLayer('trigger8');
	
	keyReset = true;
	resetTimeout = setTimeout('timedresetMain()', 1);
	
}
function timedresetMain()
{
	if(keyReset)
	{
		resetMain();
	}
}
function clearreset()
{
	if(keyReset) window.clearTimeout(resetTimeout);
	keyReset = false;
}