$.blockUI.defaults.message = '處理中，請稍候...';

$.blockUI.defaults.overlayCSS.backgroundColor = 'rgb(245, 245, 245)';
$.blockUI.defaults.overlayCSS.opacity = 0.3;

$(document).ajaxStart($.blockUI).ajaxStop($.unblockUI);

function block(){
	$.blockUI();
}

function unblock(){
	$.unblockUI();
}