var Section = '';
var PreloadFlag = false;

function initSection (arg) {
	changeImages(arg, '-on');
	Section = arg;
	return true;
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (PreloadFlag == true)) {
		// Leave the current button unchanged.
		if (changeImages.arguments[0] == Section) { return; } 
		
		document[changeImages.arguments[0]].src = 'http://www.huntcal.com/img/' +
				changeImages.arguments[0] + changeImages.arguments[1] + '.gif';
	}
}

function preloadImages() {
        if (document.images) {
		newImage("http://www.huntcal.com/img/bFeatures-on.gif");		
		newImage("http://www.huntcal.com/img/bFAQ-on.gif");
		newImage("http://www.huntcal.com/img/bIdeas-on.gif");
		newImage("http://www.huntcal.com/img/bCustomizeCal-on.gif");
		newImage("http://www.huntcal.com/img/bGoToCal-on.gif");
		newImage("http://www.huntcal.com/img/bContact-on.gif");
		newImage("http://www.huntcal.com/img/bHome-on.gif");
		PreloadFlag = true;
	}
	return true;
}