<!-- 
if (document.images) {
	
	
	img1on = new Image()
	img1on.src = "images/option_home_over.gif";
	img2on = new Image()
	img2on.src = "images/option_login_over.gif";
	img3on = new Image()
	img3on.src = "images/option_contactus_over.gif";
	
	
	img1off = new Image()
	img1off.src = "images/option_home.gif";
	img2off = new Image()
	img2off.src = "images/option_login.gif";
	img3off = new Image()
	img3off.src = "images/option_contactus.gif";
	
}

function imgAct(imgName) {
	if (document.images) {
	document[imgName].src = eval(imgName + "on.src");
	}
}
function imgInact(imgName) {
	if (document.images) {
	document[imgName].src = eval(imgName + "off.src");
	}
}
//-->