function schedule_effects(scheduleid) {
    this.scheduleid = scheduleid //ID of Tab Menu main container
    this.eventlinks = document.getElementById(scheduleid).getElementsByTagName("a");
    for (var i = 0; i < this.eventlinks.length; i++) {
        var href = this.eventlinks[i].getAttribute("href");
        if (href) {
            var eventcell = this.eventlinks[i].parentNode;
            eventcell.href = href;
            if (eventcell.className) {
                eventcell.originalClassName = eventcell.className;
                eventcell.hoverClassName = eventcell.className + "_hover";
                eventcell.onmouseover = function(evt) { this.className = this.hoverClassName; };
                eventcell.onmouseout = function(evt) { this.className = this.originalClassName; };
            }
            eventcell.onclick = function(evt) { window.location = this.href; };
        }
    }
}