function alternateRows() {
	el = document.getElementsByTagName("table");
	for (i = 0; i < el.length; i++)
		if (el[i].className == "altrows") {
	    rows = el[i].getElementsByTagName("tr");
	  for (j = 0; j < rows.length; j++)
		  rows[j].className = "row" + (j % 2);
  }
}
window.onload = function() {
alternateRows();
}



sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);