function init() {
	var W3CDOM = (document.createElement && document.getElementsByTagName);
	if (!W3CDOM) return;
	var test = new Image();
	var tmp = new Date();
	var suffix = tmp.getTime();
	test.src = '/images/graphics/scarthinbooks.gif?'+suffix;
	test.onload = imageReplacement;
}

function imageReplacement() {
	replaceThem(document.getElementsByTagName('h1'));
}

function replaceThem(x) {
	var replace = document.createElement('img');
	for (var i=0;i<x.length;i++){
		if (x[i].id) {
			var y = replace.cloneNode(true);
			y.src = '/images/graphics/' + x[i].id + '.gif';
			y.alt = x[i].firstChild.nodeValue;
			x[i].replaceChild(y,x[i].firstChild);
		}
	}
}

sfh = function() {
	var e = document.getElementById("nav").getElementsByTagName("LI");
	for (i=0; i<e.length; i++) {
		e[i].onmouseover=function() {this.className+=" over";};
		e[i].onmouseout=function() {this.className=this.className.replace(" over", "");};
	}
}

if (window.attachEvent) window.attachEvent("onload", sfh);