function subload(url, params, place) {
	var myAjax = new Ajax.Updater(
		{success: place},
		url,
		{method: 'post', parameters: params, evalScripts: true}
		);
}

function show_progress(element_id){
	$(element_id).innerHTML = '<img src="/Manager/images/loading.gif">';
}

function ShowParBlock( tp ){
	var url = '/zayavka/';
	params = 'ajax=' + tp;
	show_progress('par_block');
	subload(url, params, 'par_block');
}