function selectTextField() {
	var filter_text = document.getElementById('filter');
	filter_text.focus();
	filter_text.select();
}
function updateSearch() {
	var input_form = document.getElementById('filter');
	var filter = input_form.value.toLowerCase();
	input_form.value = filter;
	var table = document.getElementById('searchable');
	var alt_style = 'norm';
	for (var i = 0; i < table.rows.length; i++) {
		try {
			var row = table.rows[i];
			if (row.className == 'title') continue;
			var found = 0;
			for (var j = 0; j < row.cells.length; j++) {
				var cell = row.cells[j];
				if (cell.innerText.toLowerCase().indexOf(filter) != -1) {
					found = 1;
					break;
				}
			}
			if (found == 0) row.style.display = 'none';
			else {
				row.style.display = 'block';
				row.className = alt_style;
				if (alt_style == 'alt') alt_style = 'norm';
				else alt_style = 'alt';
			}
		} catch (err) {}
	}
}