var preloadFlag = false;
var imgOut = new Image();

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

function swapOver(imgTag, imgSrc) {
	if (preloadFlag == true) {
		imgOut.src = document[imgTag].src;
		document[imgTag].src = eval(imgSrc + '.src');
	}
}

function swapOut(imgTag) {
	if (preloadFlag == true && imgOut.src) {
		document[imgTag].src = imgOut.src;
	}
}

function preloadImages() {
	if (document.images) {
		src_news_summary = newImage('http://www.commissionking.com/images/news_summary-lgrey.gif');
		src_payment_reports = newImage('http://www.commissionking.com/images/payment_reports-lgrey.gif');
		src_stats_reports = newImage('http://www.commissionking.com/images/stats_reports-lgrey.gif');
		src_linking_codes = newImage('http://www.commissionking.com/images/linking_codes-lgrey.gif');
		src_tracking_ids = newImage('http://www.commissionking.com/images/tracking_ids-lgrey.gif');
		src_account_details = newImage('http://www.commissionking.com/images/account_details-lgrey.gif');
		preloadFlag = true;
	}

}