function showWaitting(v)
{
	var html = '';
	if(v==1)
	{
		html+= '<img src="img/ajax-loader.gif" />';
	}
	$.blockUI({
		message: html,
		css: 
		{
			color: '#fff', 	
			border: 'none',
			top:  ($(window).height() - 300)/2 + 'px',
			left: ($(window).width() - 300)/2 + 'px',
			cursor: 'pointer'
		}
	});
}