function cbFirstOption(obj)
{
	var res = obj.responseText;
	document.getElementById("girllist").innerHTML = res;
}
function changeFirstOption(obj)
{
	var off_ind;
	off_ind = obj.options[obj.selectedIndex].value;
	sendRequest( cbFirstOption, '&off_ind='+off_ind, 'GET', './girlinshop.php', true, true );
}