function openWindow(theURL,winName,features)
	{
	window.open(theURL,winName,features);
	}

function closeWindow()
	{
	window.close();
	}
	
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) {
		letsgo_over = newImage("images/letsgo_over.gif");
		letsgo_sp_over = newImage("images/letsgo_sp_over.gif");
		tellfriend_over = newImage("images/tellfriend_over.gif");
		tellfriend_sp_over = newImage("images/tellfriend_sp_over.gif");
		contactus_over = newImage("images/contactus_over.gif");
		contactus_sp_over = newImage("images/contactus_sp_over.gif");
		btn_kids_over = newImage("images/btn_kids_over.gif");
		btn_kids_sp_over = newImage("images/btn_kids_sp_over.gif");
		btn_espanol_over = newImage("images/btn_espanol_over.gif");
		btn_english_over = newImage("images/btn_english_over.gif");
		btn_educators_over = newImage("images/btn_educators_over.gif");
		btn_educators2_over = newImage("images/btn_educators2_over.gif");
		btn_homepage_over = newImage("images/btn_homepage_over.gif");
		btn_homepage_sp_over = newImage("images/btn_homepage_sp_over.gif");
		btn_teachingtips_over = newImage("images/btn_teachingtips_over.gif");
		btn_teachingtips_sp_over = newImage("images/btn_teachingtips_sp_over.gif");
		btn_educators_sp_over = newImage("images/btn_educators_sp_over.gif");
		btn_educators_sp2_over = newImage("images/btn_educators_sp2_over.gif");
		btn_order_over = newImage("images/btn_order_over.gif");
		btn_order_sp_over = newImage("images/btn_order_sp_over.gif");
		preloadFlag = true;
	}
}