function openPreview(file) {
	disablePage();
	ajax({
		'method' : 'sitefunctions',
		'action' : 'openPreview',
		'parameters' : {'file' : file},
		'callback' : val_openPreview,
		'class' : 'site'
	});
}

function val_openPreview(response) {
	popup('Templates Preview',unescape(response['content']),response['width'],'close X');
}