probTRHover = function() { 
if (document.all&&document.getElementById) {
navRoot = document.getElementsByTagName("tr");
for (i=0; i<navRoot.length; i++) {
node = navRoot[i];
node.onmouseover=function() {
if(this.className == "usersRow")
this.className +=" over";
}
node.onmouseout=function() {
if(this.className == "usersRow over")
this.className="usersRow";
}
}
}
}
if (window.attachEvent) {
window.attachEvent("onload", probTRHover);
}