function cancelEnterKey() { if (event.keyCode == 13) { event.cancelBubble = true; event.returnValue = false; if (typeof(doThisOnEnter) == 'function') {doThisOnEnter();}  } }



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) {
		menu1a = newImage("images/layout/menu1a.gif");
		menu1a = newImage("images/layout/menu2a.gif");
		menu1a = newImage("images/layout/menu3a.gif");
		menu1a = newImage("images/layout/menu4a.gif");
		menu1a = newImage("images/layout/menu5a.gif");
		preloadFlag = true;
	}
}