var ProcessingBox = {
	startProcessing:function(txt){
		var winHeight = $(window).height();
		var winWidth = $(window).width();
		var winTop = $(document).scrollTop();
		
		$('#dialog_processing_text').html(txt);
		
		var imgWidth = $('#dialog_processing').width();
		var imgHeight = $('#dialog_processing').height();

		$('#dialog_processing').css('left',(winWidth - imgWidth)/2);
		$('#dialog_processing').css('top',winTop + ((winHeight - imgHeight)/2));
		$('#dialog_processing').css('display','block');
		
	},
	stopProcessing:function(){
		$('#dialog_processing').css('display','none');		
	}
};