function open_loading(){
	$("#dialog_loading").dialog({
		autoOpen: false,
		bgiframe: true,
		resizable: false,
		dialogClass: 'loading',
		modal: true,
		overlay: {
			backgroundColor: '#1F4678',
			opacity: 0
		}
	});
	$('#dialog_loading').dialog('open');
}
$(document).ready(function () {
	$("input.button.send[type='submit']").click(open_loading);
});