var noCat = new Image();
noCat.src = 'themes/iigs/images/IIGS_blank_no_category.gif';

var blueApps = new Image();
blueApps.src = 'themes/iigs/images/IIGS_blue_apps.gif';

var greenEducation = new Image();
greenEducation.src = 'themes/iigs/images/IIGS_green_education.gif';

var magentaHardware = new Image();
magentaHardware.src = 'themes/iigs/images/IIGS_magenta_hardware.gif';

var orangeGames = new Image();
orangeGames.src = 'themes/iigs/images/IIGS_orange_games.gif';

var yellowPublications = new Image();
yellowPublications.src = 'themes/iigs/images/IIGS_yellow_publications.gif';

var appsAnim = new Image();
appsAnim.src = 'themes/iigs/images/apps_anim.gif';

var educationAnim = new Image();
educationAnim.src = 'themes/iigs/images/education_anim.gif';

var gamesAnim = new Image();
gamesAnim.src = 'themes/iigs/images/games_anim.gif';

var publicationsAnim = new Image();
publicationsAnim.src = 'themes/iigs/images/publications_anim.gif';

var defaultAnim = new Image();
defaultAnim.src = 'themes/iigs/images/What_is_the_Apple_IIGS_anim.gif';

var hardwareAnim = new Image();
hardwareAnim.src = 'themes/iigs/images/hardware_anim.gif';

var changeImg = function(img_name,img_src) {
document[img_name].src=img_src;
}

var IE6 = false /*@cc_on || @_jscript_version < 5.7 @*/;

var updateHeader = function(compName, comSrc, mastName, mastSrc, element, background){
	changeImg(compName, comSrc);
	changeImg(mastName, mastSrc);
	var elname;
	if (element.id != undefined){
		elname = element.id+"a";
		var el = document.getElementById(elname);
		el.style.backgroundColor = background;
	
	// resort to js to show our dropdowns on ie6
		if (IE6){
			var list = element.id+"ul";	
			var listel = document.getElementById(list);
			if (comSrc != noCat.src){
				// show drop down	
				listel.style.display = 'block';
				listel.style.width = '120px';
				listel.style.position = 'absolute';
				listel.style.top = '20px';
				listel.style.zIndex=100;
				listel.style.left = '0';
			}
			else {
				listel.style.display = 'none';
			}
		}
	}
	
}