virtKeyb_hover = function() {
	if(document.getElementById("virtkbd_mid")){
		var lis = document.getElementById("virtkbd_mid").getElementsByTagName("INPUT");
		for (var i=0; i<lis.length; i++) {
			lis[i].onmouseover=function() {
				this.className+=" hover";
			}
			lis[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" hover\\b"), "");
			}
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", virtKeyb_hover);