var curReveal = 0;

function showNewReveal(which) {
	if (! document.getElementById) return;
	
	document.getElementById('newrev' + curReveal).style.display = 'none';
	document.getElementById('newlink' + curReveal).className = 'newlink';
	
	document.getElementById('newrev' + which).style.display = 'block';
	document.getElementById('newlink' + which).className = 'newover';
	curReveal = which;
}

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
	
		var uls = sfEls[i].getElementsByTagName("UL");
		if (uls.length > 0)
			sfEls[i].subUL = uls[0];

		sfEls[i].onmouseover=function() {
			this.style.backgroundColor = '#188894';
			document.getElementById("nav").style.zIndex = 1000;
			
			if (this.subUL != null)
				this.subUL.className = 'sfhover';
		}
		sfEls[i].onmouseout=function() {
			this.style.backgroundColor = 'transparent';
			document.getElementById("nav").style.zIndex = 0;

			if (this.subUL)
				this.subUL.className = '';
		}
	}
}

function topicHover() {
	var sfEls = document.getElementById("topics").getElementsByTagName("DIV");
	for (var i=0; i<sfEls.length; i++) {
	
		var uls = sfEls[i].getElementsByTagName("UL");
		if (uls.length > 0)
			sfEls[i].subUL = uls[0];

		sfEls[i].onmouseover=function() {
			if (this.subUL != null)
				this.subUL.style.zIndex = 1200;
				this.subUL.className = 'vis';
		}
		sfEls[i].onmouseout=function() {
			if (this.subUL)
				this.subUL.style.zIndex = 1;
				this.subUL.className = '';
		}
	}
}

hoverInits = function() {
	if (document.all&&document.getElementById)
		sfHover();
		
	topicHover();
}
window.onload = hoverInits;