function user_handler(data){
	document.getElementById('searchu').innerHTML = data;
}
var timeO;

function search_user(el){
	if (el.value.length < 4){
		document.getElementById('span_searching1').innerHTML = 'Digite pelo menos 4 caracteres';
	}
	else
	{
		document.getElementById('span_searching1').innerHTML = '';
		if (timeO)
			clearTimeout(timeO);
		timeO = setTimeout('cExecute(\'/index.php?menuaction=preferences.uiconfig.search_group&name='+el.value+'\',user_handler)',700);
	}
}