function setIEHoverState(id,tagname) {
 el		= document.getElementById(id);

 if(el) {
	 tn		= el.getElementsByTagName(tagname);
	 for(i=0;i<tn.length;i++){
	 	tn[i].onmouseover	= function(){
			this.className ? this.className	+= ' over' : this.className = 'over';
		}
		
		tn[i].onmouseout	= function(){
			this.className		= this.className.match(/ over/) ? this.className.replace(/ over/,'') : this.className.replace(/^over/,'');
		}
	 }
 }
}

window.onload = function() {
	if(is_ie5up)	setIEHoverState('tnav','li');
	
	if(is_ie5up){
		el = document.getElementById('schedule');
		if(el){
			for(var i=0;i<el.childNodes.length;i++){
				if(el.childNodes[i].tagName == 'DL'){
					el.childNodes[i].lastChild.style.backgroundImage = 'none';
				}
			}
		}
	}
}