function newImage(arg) {

	if (document.images) {

		rslt = new Image();

		rslt.src = arg;

		return rslt;

	}

}



function changeImages() {

	if (document.images && (preloadFlag == true)) {

		for (var i=0; i<changeImages.arguments.length; i+=2) {

			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];

		}

	}

}



var preloadFlag = false;

function preloadImages() {

	if (document.images) {

		RealFlight_over = newImage("sidebarimages/RealFlight-over.gif");

		RealFlightG2_over = newImage("sidebarimages/RealFlightG2-over.gif");

		RealFlightG2Lite_over = newImage("sidebarimages/RealFlightG2Lite-over.gif");

		RCPilot_over = newImage("sidebarimages/RCPilot-over.gif");

		RealRace_over = newImage("sidebarimages/RealRace-over.gif");

		KnowledgeBase_over = newImage("sidebarimages/KnowledgeBase-over.gif");

		Discussion_over = newImage("sidebarimages/Discussion-over.gif");

		Search_over = newImage("sidebarimages/Search-over.gif");

		ReportBug_over = newImage("sidebarimages/ReportBug-over.gif");

		Feature_over = newImage("sidebarimages/Feature-over.gif");

		Glossary_over = newImage("sidebarimages/Glossary-over.gif");

		GreatPlanes_over = newImage("sidebarimages/GreatPlanes-over.gif");

		KnifeEdge_over = newImage("sidebarimages/KnifeEdge-over.gif");

		preloadFlag = true;

	}

}