function highlightTableRows(tableId) {
    var previousClass = null;
    var table = document.getElementById(tableId); 
    var tbody = table.getElementsByTagName("tbody")[0];
    var rows;
    if (tbody == null) {
        rows = table.getElementsByTagName("tr");
    } else {
        rows = tbody.getElementsByTagName("tr");
    }

	// alert ('r.len: ' + rows.length);
    // add event handlers so rows light up and are clickable
    for (i=0; i < rows.length; i++) {
		/*
        rows[i].onmouseover = function() { previousClass=this.className;this.className+=' over' };
        rows[i].onmouseout = function() { this.className=previousClass };
		*/
        rows[i].onmouseover = function() { previousClass=this.className;this.className='over' };
        rows[i].onmouseout = function() { this.className=previousClass };
/*
        rows[i].onclick = function() {
            var cell = this.getElementsByTagName("td")[0];
            var link = cell.getElementsByTagName("a")[0];
            location.href = link.getAttribute("href");
            this.style.cursor="wait";
        }
*/
    }
}

window.onload = function() {
	highlightTableRows ('cat-list');
}