function room_children() {

	var ch1 = document.getElementById('sel_ch1');
	var ch2 = document.getElementById('sel_ch2');
	var chall = document.getElementById('ch_block');

	switch (rs[document.forms[form_name].rs.value]) {
		case 2:
			ch1.disabled=false;
			ch2.disabled=false;
			chall.style.display = 'block';
		break;
		case 1:
			ch1.disabled=false;
			ch2.disabled=true;
			ch2.selectedIndex = 0;
			chall.style.display = 'block';
		break;
		default:
			ch1.disabled=true;
			ch2.disabled=true;
			ch1.selectedIndex = 0;
			ch2.selectedIndex = 0;
			chall.style.display = 'none';
		break;
	}
}

function showCityDiv(div_id){
    if(window.ct == undefined){
    	jQuery('#ct_1').css({ 'display' : 'none' });
    } else {
    	jQuery('#ct_' + window.ct).css({ 'display' : 'none' });
    }
    jQuery('#ct_' + div_id).css({ 'display' : 'block' });
	window.ct = div_id;

	switch(div_id) {
		case 1:
			jQuery('#rus').removeClass('for_click').addClass("clicked");
			jQuery('#ukr').removeClass('clicked').addClass("for_click");
			jQuery('#co_select').val('0');
			break;
		case 114:
			jQuery('#rus').removeClass('clicked').addClass("for_click");
			jQuery('#ukr').removeClass('for_click').addClass("clicked");
			jQuery('#co_select').val('0');
			break;
		default:
			jQuery('#rus').removeClass('clicked').addClass("for_click");
			jQuery('#ukr').removeClass('clicked').addClass("for_click")
			break;
	}
}