function do_active(elem){
	var parent, tds, i;
	parent = elem.parentNode;
	while(parent.tagName.toLowerCase()!='table'){
		parent = parent.parentNode;
	}
	
	tds = parent.getElementsByTagName('td');
	for(i=0; i<tds.length; i++){
		tds[i].className = tds[i].className.replace(/(row.*)active(.*)/, '$1$2');
	}
	
	elem.className = elem.className + ' active';
	
	document.rec_form.rec_time.value = elem.getAttribute('time');
	//alert(elem.getAttribute('time'));
}