createImage('home');
createImage('pop3');
createImage('business');
createImage('support');
createImage('myaccount');

function createImage(imgName){
	eval(imgName + " = new Image()");
	eval(imgName + ".src = 'images/nav/" + imgName + ".gif'");
	eval(imgName + "_on = new Image()");
	eval(imgName + "_on.src = 'images/nav/" + imgName + "_on.gif'");
}
function over(imgName){
	if (document.images){
		eval("document.images['" + imgName + "'].src = " + imgName + "_on.src");
	}
}
function out(imgName){
	if (document.images){
		eval("document.images['" + imgName + "'].src = " + imgName + ".src");
	}
}