function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function setPage(mainMenu,subMenu) {
	if (document.images && (preload==true)) {
		document[mainMenu].src = (eval(mainMenu+"Up")).src;
		document[subMenu].src = (eval(subMenu+"Up")).src;
		return true;
	}
}
function swapMain(name,state) {
	if (document.images && (preload==true) && (name!=mainMenu)) {
		document[name].src = (eval(name+state)).src;
		return true;
	}
}
function swapSub(name,state) {
	if (document.images && (preload==true) && (name!=subMenu)) {
		document[name].src = (eval(name+state)).src;
		return true;
	}
}