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) {
		view_over = newImage("images/view-over.gif");
		email_over = newImage("images/email-over.gif");
		email_sub_over = newImage("images/email-sub-over.gif");
		over_1 = newImage("images/nav/1-on.gif");
		over_2 = newImage("images/nav/2-on.gif");
		over_3 = newImage("images/nav/3-on.gif");
		over_4 = newImage("images/nav/4-on.gif");
		over_5 = newImage("images/nav/5-on.gif");
		over_6 = newImage("images/nav/6-on.gif");
		next_over = newImage("images/pop-next-on.gif");
		prev_over = newImage("images/pop-prev-on.gif");
		preloadFlag = true;
	}
}

function pop(url){
	window.open(url,'pop','top=20,left=20,width=696,height=574');
}