var style_cookie_name = "skin";
var style_cookie_duration = 120;
var style_cookie_domain = "archaicro.org";
var style_path = "/themes/modern/css/";

function changeUI(field){
	styleid = field.options[field.selectedIndex].value;
//	document.location = (field.options[field.selectedIndex].value);
	document.getElementById('css1_Default').href = style_path+styleid+'.css';
	document.getElementById('css2_Default').href = style_path+styleid+'_reg_style.css';
	set_cookie( style_cookie_name, styleid, style_cookie_duration, style_cookie_domain );
	return;
}

function set_cookie( cookie_name, cookie_value, lifespan_in_days, valid_domain ) {
	var domain_string = valid_domain ? ("; domain=" + valid_domain) : '' ;
	document.cookie = cookie_name + "=" + encodeURIComponent( cookie_value ) + "; max-age=" + 60 * 60 * 24 * lifespan_in_days + "; path=/" + domain_string ;
}