function search(show_empty) {
	var fn=document.getElementById('fname').value;
	var ln=document.getElementById('lname').value;
	var phones=document.getElementById("phones").getElementsByTagName("tr");
	for(i=1;i<phones.length;i++) {
		if(phones[i].getElementsByTagName("td")[0].innerHTML.indexOf(fn)>-1 && phones[i].getElementsByTagName("td")[1].innerHTML.indexOf(ln)>-1)
			phones[i].style.display=document.all ? 'block' : 'table-row';
		else
			phones[i].style.display='none';
	}
}