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) {

		_home = newImage("framework2/rollover/OMrohome.gif");
		_cs = newImage("framework2/rollover/OMroCS.gif");
		_loc = newImage("framework2/rollover/OMroloc.gif");
		_pr = newImage("framework2/rollover/OMroPR.gif");
		_login = newImage("framework2/rollover/OMrologin.gif");
		_con = newImage("framework2/rollover/OMrocon.gif");

		_launch = newImage("images/launchpres_ro.gif");

		preloadFlag = true;
	}
}