function setCaptchaField(img){if($(".captchaImage").size()!=0){var field=".captchaImage";if(typeof(img)!='undefined'){field=img;}
$(field).attr("src",$(field).attr("xsrc")+"?"+Math.random());$(".captchaAnswer").val("");}}
function doRefresh(url){if(typeof(url)=='undefined'){url="login";}
window.location.href=url;return false;}