startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
if ( navRoot ) {
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {  this.className+=" over"; }
node.onmouseout=function() {this.className=this.className.replace(" over", "");}
}
}
}
}
}
window.onload=startList;