jQuery.extend(jQuery.blockUI.defaults.overlayCSS, {backgroundColor: '#000000', opacity: '0.5', cursor: 'auto'});
jQuery.extend(jQuery.blockUI.defaults.pageMessageCSS, {backgroundColor: '#000000', color: '#999999', cursor: 'auto', border: 'none', textAlign: 'left'});

jQuery.extend({
	gcLoading: function (text) {
		if (!text) {
			text = 'Loading...';
		}

		return jQuery.blockUI('<div class="box" style="text-align: center">' + text + '</div>');
	},

	gcStopLoading: function () {
		jQuery.unblockUI();
	}
});