.advertisement span{
	background:none;
	filter:progid:dximagetransform.microsoft.alphaimageloader(src='images/bg-text-advertisement.png', sizingmethod='crop');
}
#nav li{
	behavior: expression(
	this.onmouseover = new Function("this.className += ' hover'"),
	this.onmouseout = new Function("this.className = this.className.replace(' hover','')"),
	this.style.behavior = null);
}
.drop-down li{background-image: expression((this===this.parentNode.childNodes[0]) ? "none" : "auto");}