function CXmlHttp(){var d=null;var e=null;this.setXmlHttpObj=function(){if(d==null){d=new Request({onSuccess:function(a){xmlHttpRes=a;eval(e)},onFailure:function(){},onException:function(){}})}return d};this.sendXmlHttp=function(a,b,c){e='xmlHttp_'+a+'(xmlHttpRes);';d.send({url:b,data:c})};this.showLoadingScreen=function(a){var b='<span><img src="/templates/'+CURRENT_TEMPLATE+'/img/loading.gif" alt="loading ..." /></span>';if(typeof(a)=='object'&&a)$(a).set('html',b)}}