if (document.images) {
	var aaa = new Image();
	aaa.src = "/img/nav1a.gif";
	var aan = new Image();
	aan.src = "/img/nav1.gif";
	var bba = new Image();
	bba.src = "/img/nav2a.gif";
	var bbn = new Image();
	bbn.src = "/img/nav2.gif";
	var cca = new Image();
	cca.src = "/img/nav3a.gif";
	var ccn = new Image();
	ccn.src = "/img/nav3.gif";
	
}

function act(imgName) {
	if (document.images) 
	document[imgName].src = eval(imgName + 'a.src');
}
function inact(imgName) {
	if (document.images)
	document[imgName].src = eval(imgName + 'n.src');
}


var loaded = false;
var popTimer = false;
// Browser version detection
var isNS4 = (document.layers) ? true : false;
var isIE4 = (document.all && !document.getElementById) ? true : false;
var isIE5 = (document.all && document.getElementById) ? true : false;
var isNS6 = (!document.all && document.getElementById) ? true : false;

/* 
This function either shows or hides the Popper (indicated on function 
initiation by either a 1 or 0. 1 show's the Popper, 0 hides it.)
*/
function setTimer() {
	clearTimeout( popTimer );
	popTimer = setTimeout ('hideAllPoppers();', 3000);
}

function showPopper( whichMenu, show ) {
	hideAllPoppers();
	setTimer();
	if (isNS4){
		var menu = document.layers[whichMenu];
		if ( show == 1 ) {
			menu[ 'visibility' ] = 'visible';
			
		} else {
			menu[ 'visibility' ] = 'hidden';
		}
	}
	else if (isIE4) {
		var menu = document.all[whichMenu].style;
		if ( show == 1 ) {
			menu[ 'visibility' ] = 'visible';
		} else {
			menu[ 'visibility' ] = 'hidden';
		}
	}
	else if (isIE5 || isNS6) {
		var menu = document.getElementById(whichMenu);
		if ( show == 1 ) {
			menu.style.visibility = "visible";
		} else {
			menu.style.visibility = "hidden";
		}
	}
}

function hideAllPoppers() {
	if (isNS4) {
// Repeat these 2 lines for every individual menu.
		var menu1 = document.layers["sub1"];
		menu1[ 'visibility' ] = 'hidden';
		var menu2 = document.layers["sub2"];
		menu2[ 'visibility' ] = 'hidden';
		var menu3 = document.layers["sub3"];
		menu3[ 'visibility' ] = 'hidden';
		var menu4 = document.layers["sub4"];
		menu4[ 'visibility' ] = 'hidden';
		var menu5 = document.layers["sub5"];
		menu5[ 'visibility' ] = 'hidden';
		var menu6 = document.layers["sub6"];
		menu6[ 'visibility' ] = 'hidden';
		var menu7 = document.layers["sub7"];
		menu7[ 'visibility' ] = 'hidden';
		var menu8 = document.layers["sub8"];
		menu8[ 'visibility' ] = 'hidden';
		var menu9 = document.layers["sub9"];
		menu9[ 'visibility' ] = 'hidden';
		var menu10 = document.layers["sub10"];
		menu10[ 'visibility' ] = 'hidden';
	}
	else if (isIE4) {
// Repeat these 2 lines for every individual menu.
		var menu1 = document.all.sub1.style;
		menu1[ 'visibility' ] = 'hidden';
		var menu2 = document.all.sub2.style;
		menu2[ 'visibility' ] = 'hidden';
		var menu3 = document.all.sub3.style;
		menu3[ 'visibility' ] = 'hidden';
		var menu4 = document.all.sub4.style;
		menu4[ 'visibility' ] = 'hidden';
		var menu5 = document.all.sub5.style;
		menu5[ 'visibility' ] = 'hidden';
		var menu6 = document.all.sub6.style;
		menu6[ 'visibility' ] = 'hidden';
		var menu7 = document.all.sub7.style;
		menu7[ 'visibility' ] = 'hidden';
		var menu8 = document.all.sub8.style;
		menu8[ 'visibility' ] = 'hidden';
		var menu9 = document.all.sub9.style;
		menu9[ 'visibility' ] = 'hidden';
		var menu10 = document.all.sub10.style;
		menu10[ 'visibility' ] = 'hidden';
	}
	else if (isIE5 || isNS6) {
// Repeat these 2 lines for every individual menu.
		var menu1 = document.getElementById("sub1");
		menu1.style.visibility = "hidden";
		var menu2 = document.getElementById("sub2");
		menu2.style.visibility = "hidden";
		var menu3 = document.getElementById("sub3");
		menu3.style.visibility = "hidden";
		var menu4 = document.getElementById("sub4");
		menu4.style.visibility = "hidden";
		var menu5 = document.getElementById("sub5");
		menu5.style.visibility = "hidden";
		var menu6 = document.getElementById("sub6");
		menu6.style.visibility = "hidden";
		var menu7 = document.getElementById("sub7");
		menu7.style.visibility = "hidden";
		var menu8 = document.getElementById("sub8");
		menu8.style.visibility = "hidden";
		var menu9 = document.getElementById("sub9");
		menu9.style.visibility = "hidden";
		var menu10 = document.getElementById("sub10");
		menu10.style.visibility = "hidden";
	}
}